东财《经济数学》在线作业三-0003

adminhan

<p>题见下图</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20070515/7667ffb6.JPG" /></p>
A:A
B:B
C:C
D:D

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20060407/511c0f7a.JPG" />。
A:a
B:b
C:c
D:d

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051111/9354d919.JPG" />。
A:A
B:B
C:C
D:D

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20060407/c8a50a0b.JPG" />。
A:a
B:b
C:c
D:d

<p>题见图片</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051104/f384e617.JPG" /></p>
A:A
B:B
C:C
D:D

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20060407/089cf92d.JPG" />。
A:a
B:b
C:c
D:d

<p>题见下图</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051104/3fdcab21.JPG" /></p>
A:A
B:B
C:C
D:D

<p>题见下图</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20070515/29c48939.JPG" /></p>
A:<p>A</p>
B:<p>B</p>
C:<p>C</p>
D:<p>D</p>

<p>题见图片</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051111/fd14f0fe.JPG" /></p>
A:A
B:B
C:C
D:D

<p>题见图片</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20070515/fc5ffce8.JPG" /></p>
A:A
B:B
C:C
D:D

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051113/11c87033.JPG" />。
A:A
B:B
C:C
D:D

<p>题见下图</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20070515/158bb58a.JPG" /></p>
A:A
B:B
C:C
D:D

<p>题见图片</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051104/4605e713.JPG" /></p>
A:A
B:B
C:C
D:D

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20061024/2b9d33c3.JPG" />。
A:A
B:B
C:C
D:D

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20061024/a796c47a.JPG" />。
A:A
B:B
C:C
D:D

<p>题见下图</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051105/656c62f9.JPG" /></p>
A:（2,0）；
B:（1,-1）；
C:（0,-2）；
D:不存在

<p>题见下图</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20070515/ed1d3585.JPG" /></p>
A:A
B:B
C:C
D:D

<p>题见图片</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051104/09072fcd.JPG" /></p>
A:A
B:B
C:C
D:D

方程dy/dx － y/x =0的通解为
A:c/x；
B:c+x；
C:1/x + c；
D:cx

<img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051113/71cb1502.JPG" />。
A:A
B:B
C:C
D:D

函数y=1/lg(1-x)的定义域是
A:（-&infin;,1）；
B:（-&infin;,1]；
C:（-&infin;,0）&cup;（0,1）；
D:以上都不对

<p>题见下图</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051105/1b879192.JPG" /></p>
A:递增；
B:递减；
C:不增不减；
D:有增有减

<p>题见下图</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051105/727a8285.JPG" /></p>
A:极小值点；
B:极大值点；
C:驻点；
D:拐点

<p>题见图片</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20070515/739941cf.JPG" /></p>
A:A
B:B
C:C
D:D

<p>题见图片</p><p><img alt="" src="http://file.open.com.cn/Lms/ItemDBAttachments/image/singleselect/dcwjfe/20051104/d8f96cd0.JPG" /></p>
A:原点；
B:x轴；
C:y轴；
D:直线y=x