西工大19秋《概率论与数理统计》在线作业

adminhan

<p><img alt="" width="414" height="36" src="http://file.open.com.cn/ItemDB/126920/8c61f515-1d05-4a28-8446-924a799e473c/20141225162113512.jpg" /></p><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)"><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">A</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.4&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">B</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.6&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">C</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.8&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">D</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.7&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><!--EndFragment--></p><p><!--EndFragment--></p></span>
A:A
B:B
C:C
D:D

1`<img width="575" height="434" alt="" src="http://file.open.com.cn/ItemDB/126920/9d84a572-6eec-43c6-99c6-84c2a91fe8bc/2014123022710595.jpg" />
A:A
B:B
C:C
D:D

<p><img alt="" width="547" height="59" src="http://file.open.com.cn/ItemDB/126920/49cf4e75-1f98-4956-90e2-52a4a2219fe7/20141225144228738.jpg" /></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: 'Arial'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">C=<font face="Helvetica Neue">（</font><font face="Arial">&nbsp;&nbsp;&nbsp;&nbsp;</font><font face="Helvetica Neue">）</font></span><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">时，</span><span style="FONT-FAMILY: 'Arial'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">CY</span><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">服从自由度为</span><span style="FONT-FAMILY: 'Arial'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">2</span><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">的</span><span style="FONT-FAMILY: 'Arial'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">X</span><span style="FONT-FAMILY: 'Arial'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 8pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">2</span><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">分布。</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)"><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">A</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;1/3&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">B</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;1/2&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">C</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;1/4&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">D</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;1/5&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><!--EndFragment--></p><p><!--EndFragment--></p></span>
A:A
B:B
C:C
D:D

<p><img alt="" width="345" height="37" src="http://file.open.com.cn/ItemDB/126920/528decfd-f326-4b48-991a-9c266093e2c2/201412251433669.jpg" /></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">A</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;1&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">B</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;2&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">C</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;3&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">D</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;-1&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p><!--EndFragment--><!--EndFragment--></p>
A:A
B:B
C:C
D:D

<p><img alt="" width="340" height="35" src="http://file.open.com.cn/ItemDB/126920/8a0ea6e4-a394-4449-a022-4b5081e175ce/20141225143340711.jpg" /></p><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)"><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">A</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;a&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">B</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;b&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">C</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;ab&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">D</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;a/b&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><!--EndFragment--></p><p><!--EndFragment--></p></span>
A:A
B:B
C:C
D:D

<p><img alt="" width="374" height="29" src="http://file.open.com.cn/ItemDB/126920/179ad9f0-0aa7-4282-9b3e-c75de5442795/20141225161939258.jpg" /></p><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)"><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">A</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.6&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">B</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.7&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">C</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.8&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">D</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.5&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><!--EndFragment--></p><p><!--EndFragment--></p></span>
A:A
B:B
C:C
D:D

<img width="596" height="428" alt="" src="http://file.open.com.cn/ItemDB/126920/3f90a9a9-674a-491e-8741-8cc85aed1c92/20141230221251548.jpg" />2
A:A
B:B
C:C
D:D

<p><img width="607" height="350" alt="" src="http://file.open.com.cn/ItemDB/126920/956f18f5-8578-4c6a-bc60-61f90ee48811/2014123022124374.jpg" /></p><p>1</p>
A:A
B:B
C:C
D:D

<img width="625" height="302" alt="" src="http://file.open.com.cn/ItemDB/126920/ee72c657-7e58-4182-8980-327e6b07c651/2014123021552964.jpg" />1
A:A
B:B
C:C
D:D

<p><img width="589" height="466" alt="" src="http://file.open.com.cn/ItemDB/126920/f0ae4a4f-64a4-44e2-bf79-10e485731888/20141230221128685.jpg" /></p><p>1</p>
A:A
B:B
C:C
D:D

<p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)"><img alt="" width="524" height="21" src="http://file.open.com.cn/ItemDB/126920/8e15bf60-d117-4723-861d-d0f0b965a1e0/20141225162046621.jpg" /></span></p><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)"><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">A</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.6&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">B</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.5&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">C</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.7&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">D</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.4&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><!--EndFragment--></p><!--EndFragment--></span>
A:A
B:B
C:C
D:D

<img width="644" height="547" alt="" src="http://file.open.com.cn/ItemDB/126920/cb5c95c8-4100-4f6a-ba96-24a7dfaf17ce/20141230215211321.jpg" />1
A:A
B:B
C:C
D:D

<img width="568" height="391" alt="" src="http://file.open.com.cn/ItemDB/126920/eeec24d8-2b1d-485a-966e-5da8a2dc4056/2014123021512137.jpg" />1
A:A
B:B
C:C
D:D

<img width="656" height="385" alt="" src="http://file.open.com.cn/ItemDB/126920/15d425a8-5aae-4089-b957-c4dbdd4869e7/20141230221045980.jpg" />1
A:A
B:B
C:C
D:D

<img width="618" height="392" alt="" src="http://file.open.com.cn/ItemDB/126920/5281ed8e-7fc9-4795-9a27-240fc22d9367/20141230221446803.jpg" />1
A:A
B:B
C:C
D:D

<p><img width="459" height="214" alt="" src="http://file.open.com.cn/ItemDB/126920/ab326a32-532c-4983-abdd-ae1082be9d1a/20141230222232137.jpg" /></p><p>1</p>
A:A
B:B
C:C
D:D

<p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">&nbsp;</span><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">设（</span><span style="FONT-FAMILY: 'Arial'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">4,6,4,3,5,4,5,8,4,7</span><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">）是来自总体的一个样本值，则样本均值</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span></span><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)"><img alt="" width="13" height="25" src="http://file.open.com.cn/ItemDB/126920/b9b64f37-daba-4d19-b2e7-df0bf3ae6e74/2014122514443489.jpg" />=（&nbsp;&nbsp;&nbsp;&nbsp;）。</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)"><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">A</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;2&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">B</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;3&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">C</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;4&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">D</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;5&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><!--EndFragment--></p><!--EndFragment--></span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span>
A:A
B:B
C:C
D:D

1<img alt="" width="651" height="362" src="http://file.open.com.cn/ItemDB/126920/a8c0a70e-a762-4372-b6aa-b214ce778fca/2014123022839818.jpg" />
A:A
B:B
C:C
D:D

1<img width="702" height="452" alt="" src="http://file.open.com.cn/ItemDB/126920/cb9539ab-6289-4267-a3cf-aba6f67df372/2014123022109791.jpg" />
A:A
B:B
C:C
D:D

<p><img width="367" height="333" alt="" src="http://file.open.com.cn/ItemDB/126920/a9a19365-e949-43d7-bb3c-d274f78d0c37/2014123022195251.jpg" /></p><p>1</p>
A:A
B:B
C:C
D:D

<img width="639" height="455" alt="" src="http://file.open.com.cn/ItemDB/126920/5f02cbc6-dbc4-4e31-b91e-396d40b76284/2014123022022296.jpg" />1
A:A
B:B
C:C
D:D

<p><img alt="" width="533" height="179" src="http://file.open.com.cn/ItemDB/126920/782fa52e-323f-4083-a893-541f4ef86f54/20141225143732442.png" /></p><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)"><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">A</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;a=12，b=-12，c=3&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">B</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;a=-12，b=-12，c=-3&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">C</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;a=-12，b=12，c=-3&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">D</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;a=12，b=12，c=3&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><!--EndFragment--></p><p><!--EndFragment--></p></span>
A:A
B:B
C:C
D:D

<img width="730" height="602" alt="" src="http://file.open.com.cn/ItemDB/126920/09f8b49a-72eb-4723-96a6-8755334f315a/20141230215743883.jpg" />1
A:A
B:B
C:C
D:D

<img width="629" height="464" alt="" src="http://file.open.com.cn/ItemDB/126920/0834c2ab-955a-4c2e-9dec-6825261efc7c/20141230221528165.jpg" />1
A:A
B:B
C:C
D:D

<img width="576" height="310" alt="" src="http://file.open.com.cn/ItemDB/126920/9c59b35f-22d9-4c26-bb37-b5f1f0dbb140/2014123021571631.jpg" />1
A:A
B:B
C:C
D:D

<p><img width="631" height="313" alt="" src="http://file.open.com.cn/ItemDB/126920/a9c0b16a-37d3-40b3-94f0-487b5cc8dd68/2014123022236279.jpg" /></p><p>1</p>
A:A
B:B
C:C
D:D

<p><img alt="" width="458" height="48" src="http://file.open.com.cn/ItemDB/126920/b061cc66-149d-453e-b237-8fd360e5b0e9/20141225161349383.jpg" /></p><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)"><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">A</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.02&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">B</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.01&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">C</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.1&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">D</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.2&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><!--EndFragment--></p><p><!--EndFragment--></p></span>
A:A
B:B
C:C
D:D

<p><img alt="" src="http://file.open.com.cn/ItemDB/126920/0b748135-556f-4118-a362-d0356cffcdbb/2014122515959667.jpg" /></p><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)"><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">A</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.925&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">B</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.825&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">C</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.9&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="MARGIN-TOP: 0pt; MARGIN-BOTTOM: 0pt" class="p0"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">D</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;0.725</span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><!--EndFragment--></p><p><!--EndFragment--></p></span>
A:A
B:B
C:C
D:D

<img width="643" height="386" alt="" src="http://file.open.com.cn/ItemDB/126920/6e009489-bd3b-40b0-b069-2b395f4c5316/2014123022927164.jpg" />1
A:A
B:B
C:C
D:D

1<img width="606" height="434" alt="" src="http://file.open.com.cn/ItemDB/126920/85ec7773-6bbe-4db7-993b-f78d3f0c5798/201412302262878.jpg" />
A:A
B:B
C:C
D:D

<img width="678" height="429" alt="" src="http://file.open.com.cn/ItemDB/126920/88eb1884-7e3a-441a-ad8d-15c835761e16/2014123022545842.jpg" />1
A:A
B:B
C:C
D:D

<img width="621" height="614" alt="" src="http://file.open.com.cn/ItemDB/126920/d8235617-a20e-4ae9-86f3-875ca49a07c5/20141230215356247.jpg" />1
A:A
B:B
C:C
D:D

<img width="652" height="281" alt="" src="http://file.open.com.cn/ItemDB/126920/5496ca3b-1a0f-483d-96d1-45bf4e7d0d70/2014123022211691.jpg" />1
A:A
B:B
C:C
D:D

1<img width="631" height="388" alt="" src="http://file.open.com.cn/ItemDB/126920/10cc0f02-d224-45fb-8219-5a86f908c13f/201412302284785.jpg" />
A:A
B:B
C:C
D:D

<img width="704" height="452" alt="" src="http://file.open.com.cn/ItemDB/126920/0699b777-d630-4d19-ae6e-e1a8fd068db6/20141230222648914.jpg" />1
A:A
B:B
C:C
D:D

<p><img alt="" width="406" height="43" src="http://file.open.com.cn/ItemDB/126920/0551733b-f3aa-49a8-acf2-828f73cde73a/20141225143634892.jpg" /></p><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)"><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">A</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;1/2&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">B</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;1/4&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">C</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;1/3&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><span style="FONT-FAMILY: '宋体'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">D</span><span style="FONT-FAMILY: 'Helvetica Neue'; BACKGROUND: rgb(245,245,245); COLOR: rgb(51,51,51); FONT-SIZE: 10.5pt; mso-spacerun: 'yes'; mso-shading: rgb(245,245,245)">:&nbsp;2/5&nbsp;</span><span style="FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-spacerun: 'yes'"><o:p></o:p></span></p><p style="LINE-HEIGHT: 15pt; MARGIN-TOP: 0pt; MARGIN-BOTTOM: 15pt" class="p15"><!--EndFragment--></p><p><!--EndFragment--></p></span>
A:A
B:B
C:C
D:D

<img width="251" height="31" alt="" src="http://file.open.com.cn/ItemDB/126920/d7153726-2a37-4d27-bc97-88d1cfe299f3/20141225162838282.jpg" />1
A:错误
B:正确

<img width="297" height="31" alt="" src="http://file.open.com.cn/ItemDB/126920/4e1d9ee9-073b-42dc-bff6-5dde4af84327/20141225162752468.jpg" />1
A:错误
B:正确

<img alt="" width="333" height="42" src="http://file.open.com.cn/ItemDB/126920/512a0c34-a86d-443d-b342-e09dc4bf9663/20141225162814172.jpg" />1
A:错误
B:正确

<img alt="" width="146" height="31" src="http://file.open.com.cn/ItemDB/126920/8a52ed02-9091-4236-a1e0-bfdb7c718721/20141225162731608.jpg" />1
A:错误
B:正确