《线性代数》18春在线作业2-0001

adminhan

<p>设A可逆，则下列说法<span>错误的是</span>（<span><span>&nbsp;&nbsp;&nbsp;&nbsp; </span>）。</span></p><p><span><img width="498" height="58" alt="" src="http://file.open.com.cn/ItemDB/13352/4aae370c-3777-4d5c-ad8e-267d5d5aebaf/2016118152218836.jpg" /></span></p><p>&nbsp;</p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="476" height="177" alt="" src="http://file.open.com.cn/ItemDB/13352/84044e50-32bb-42c3-9830-b2362fe8a6ab/2016118153722603.jpg" /></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="417" height="118" alt="" src="http://file.open.com.cn/ItemDB/13352/8db29825-bf75-4958-8d8b-b831e6c5874c/2016118152042159.jpg" /></p>
A:A
B:B
C:C
D:D

<p>在下列矩阵中，可逆的是（<span><span>&nbsp;&nbsp;&nbsp;&nbsp; </span>）。</span></p><p><span><img width="337" height="168" alt="" src="http://file.open.com.cn/ItemDB/13352/87448903-fd66-4edd-a58c-83992b112505/2016118152914408.jpg" /></span></p>
A:A
B:B
C:C
D:D

如图：<p><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-bidi-font-family: 'Times New Roman'"><img width="353" height="84" alt="" src="http://file.open.com.cn/ItemDB/13352/7e90fed4-b3fc-4d0b-963f-ad606a124fd6/2016118154358777.jpg" /></span></p>
A:2
B:1
C:0
D:-1

<p>如图：</p><p><img width="470" height="99" alt="" src="http://file.open.com.cn/ItemDB/13352/1bd6b681-f39e-484a-b6c5-45da119509d6/2016118144156285.jpg" /></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="488" height="204" alt="" src="http://file.open.com.cn/ItemDB/13352/7e90fed4-b3fc-4d0b-963f-ad606a124fd6/2016118154438402.jpg" /></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="576" height="231" alt="" src="http://file.open.com.cn/ItemDB/13352/93719f40-7041-4a0c-9d66-9b6f95b1a4bb/2016118154243503.jpg" /></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="544" height="269" alt="" src="http://file.open.com.cn/ItemDB/13352/18bb9e13-f528-45ef-87e2-dfe952ce65a6/2016118145630750.jpg" /></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="436" height="294" alt="" src="http://file.open.com.cn/ItemDB/2016118142616641.jpg" /></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="330" height="84" alt="" src="http://file.open.com.cn/ItemDB/13352/6adf6476-065a-4ab1-92df-c654f240ecaf/2016118152514778.jpg" /></p>
A:<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">所有</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">2</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">阶子式都不为零</span>
B:<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">所有</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">2</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">阶子式都为零</span>
C:<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">所有</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">3</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">阶子式都不为零</span>
D:<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">存在一个</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">3</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">阶子式不为零</span>

<p>下列三个矩阵中不能对角化的是（<span><span>&nbsp;&nbsp;&nbsp;&nbsp; </span>）。</span></p><p><span><img width="373" height="166" alt="" src="http://file.open.com.cn/ItemDB/2016118143719224.jpg" /></span></p>
A:A
B:B
C:C
D:D

<p>设<strong><em>A</em></strong><em>，<strong>B</strong></em>是同阶正交矩阵，则下列命题<span>错误的是</span>（<span><span>&nbsp;&nbsp;&nbsp;&nbsp; </span>）。</span></p><p><span><img width="459" height="63" alt="" src="http://file.open.com.cn/ItemDB/13352/fd414111-bc9b-4297-878a-58fa7bf65565/2016118153947412.jpg" /></span></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="578" height="59" alt="" src="http://file.open.com.cn/ItemDB/13352/6adf6476-065a-4ab1-92df-c654f240ecaf/2016118152311940.jpg" /></p>
A:ACB
B:ABC
C:BAC
D:CBA

<p>对任意同阶方阵<em>A,B</em>，下列说法正确的是（<span><span>&nbsp;&nbsp;&nbsp;&nbsp; </span>）。</span></p><p><span><img width="378" height="82" alt="" src="http://file.open.com.cn/ItemDB/13352/55ad0c1a-9d00-4a49-bed3-a1a3c8f7b996/201611814299189.jpg" /></span></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="516" height="67" alt="" src="http://file.open.com.cn/ItemDB/13352/7e774ebd-6571-42ce-aa02-5ec24ff20488/2016118143956173.jpg" /></p>
A:<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">没有相同的非零解</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"> </span>
B:<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">同解</span>
C:<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">只有相同零解</span>
D:<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">有相同的非零解</span>

<p>如图：</p><p><img width="546" height="61" alt="" src="http://file.open.com.cn/ItemDB/2016118142515879.jpg" /></p>
A:<span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">m+n</span>
B:<span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-font-width: 200%">-</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">(m+n)</span>
C:<p><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-fareast-font-family: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA">n<span>-m</span></span></p>
D:m<span>-n</span>

<p>如图：</p><p><img width="406" height="280" alt="" src="http://file.open.com.cn/ItemDB/13352/4ff6cc63-5f83-48d2-afaf-d536473223ba/2016118152014613.jpg" /></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="441" height="35" alt="" src="http://file.open.com.cn/ItemDB/201611815457121.jpg" /></p>
A:<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">正定的</span>
B:<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">半正定的</span>
C:<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">负定的</span>
D:<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">不定的</span>

<p>如图：</p><p><img width="407" height="83" alt="" src="http://file.open.com.cn/ItemDB/13352/956a35f9-2383-41c7-89fb-1912f23e04ce/2016118143022674.jpg" /></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="621" height="85" alt="" src="http://file.open.com.cn/ItemDB/2016118143148694.jpg" /></p>
A:-6
B:6
C:2
D:-2

<p>如图：</p><p><img width="392" height="270" alt="" src="http://file.open.com.cn/ItemDB/2016118153343200.jpg" /></p>
A:A
B:B
C:C
D:D

<p>设矩阵<strong>A</strong>的秩为r，则<strong>A</strong>中（<span><span>&nbsp;&nbsp;&nbsp;&nbsp; </span>）。</span></p>
A:所有r<span>-1</span>阶子式都不为0
B:所有r<span>-1</span>阶子式全为0
C:<p><span>至少有一个r阶子式不等于0</span></p>
D:至少有一个r阶子式不等于0

<p>如图：</p><p><img width="345" height="37" alt="" src="http://file.open.com.cn/ItemDB/13352/15510358-8cc7-4fb7-a41a-085986e07b1d/2016118152351876.jpg" /></p>
A:-4
B:-1
C:1
D:<p>4</p>

<p>如图：</p><p><img width="522" height="60" alt="" src="http://file.open.com.cn/ItemDB/13352/7a90213d-5005-4a7d-a44f-295294f57842/2016118145313997.jpg" /></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="554" height="58" alt="" src="http://file.open.com.cn/ItemDB/13352/93719f40-7041-4a0c-9d66-9b6f95b1a4bb/2016118153759700.jpg" /></p>
A:0
B:1
C:2
D:3

<p>设A、B为同阶可逆矩阵，则以下结论正确的是（<span><span>&nbsp;&nbsp;&nbsp;&nbsp; </span>）。</span></p><p><span><img width="462" height="60" alt="" src="http://file.open.com.cn/ItemDB/13352/d215e3a1-ee07-4d4c-b73a-d86f2f389ba1/2016118152134343.jpg" /></span></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="492" height="162" alt="" src="http://file.open.com.cn/ItemDB/13352/dde44a74-459d-429f-9d6b-94918e611284/2016118143118929.jpg" /></p>
A:A
B:B
C:C
D:D

<p>设<strong>A</strong>是正交矩阵，则下列结论错误的是（<span><span>&nbsp;&nbsp;&nbsp;&nbsp; </span>）。</span></p><p><img width="506" height="80" alt="" src="http://file.open.com.cn/ItemDB/13352/93e18e1c-de6f-41a3-947e-66facc0c4bc5/201611815850506.jpg" /></p>
A:A
B:B
C:C
D:D

<p>下列矩阵中不与对角矩阵相似的是（<span><span>&nbsp;&nbsp;&nbsp;&nbsp; </span>）。</span></p><p><span><img width="522" height="109" alt="" src="http://file.open.com.cn/ItemDB/13352/549e9d4b-76e7-478d-973d-9cbc36bda257/201611814503704.jpg" /></span></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="350" height="75" alt="" src="http://file.open.com.cn/ItemDB/201611814243296.jpg" /></p>
A:2
B:3
C:4
D:5

<p>如图：</p><p><img width="484" height="88" alt="" src="http://file.open.com.cn/ItemDB/13352/e5a93a8d-261c-4f23-bfef-18694dc59636/201611815423466.jpg" /></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="511" height="115" alt="" src="http://file.open.com.cn/ItemDB/13352/0a33447c-6954-4388-9deb-2433037985b8/2016118153836838.jpg" /></p>
A:<p>A</p>
B:B
C:C
D:D

<p>如图：</p><p><img width="517" height="143" alt="" src="http://file.open.com.cn/ItemDB/13352/7a90213d-5005-4a7d-a44f-295294f57842/2016118145526135.jpg" /></p>
A:A
B:B
C:C
D:D

<p>设<em>n</em>阶可逆矩阵<strong><em>A</em></strong>有一个特征值为2，对应的特征向量为<em>x</em>，则下列等式中<span>不正确的是</span>（<span><span>&nbsp;&nbsp;&nbsp;&nbsp; </span>）。</span></p><p><span><img width="297" height="65" alt="" src="http://file.open.com.cn/ItemDB/2016118154328964.jpg" /></span></p>
A:A
B:B
C:C
D:D

<p>下列等式中正确的是（<span><span>&nbsp;&nbsp;&nbsp;&nbsp; </span>）。</span></p><p><span><img width="439" height="74" alt="" src="http://file.open.com.cn/ItemDB/13352/0d2d329a-da3b-45ae-b080-6258e26a7b5a/2016118153214689.jpg" /></span></p>
A:A
B:B
C:C
D:D

<p>下列二次型中为规范形的是（<span><span>&nbsp;&nbsp;&nbsp;&nbsp; </span>）。</span></p><p><span><img width="385" height="77" alt="" src="http://file.open.com.cn/ItemDB/13352/2a935f3f-6f90-4de5-a426-58a20356ab22/2016118151215471.jpg" /></span></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="527" height="136" alt="" src="http://file.open.com.cn/ItemDB/13352/8dcdaa59-0f6e-4309-bd6f-14e32e871d9a/201611815819867.jpg" /></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="484" height="84" alt="" src="http://file.open.com.cn/ItemDB/2016118142653679.jpg" /></p>
A:8M
B:2M
C:-2M
D:-8M

<p>对任意<em>n</em>阶方阵<strong><em>A</em></strong>、<strong><em>B</em></strong>总有（<span><span>&nbsp;&nbsp;&nbsp;&nbsp; </span>）。</span></p><p><span><img width="333" height="46" alt="" src="http://file.open.com.cn/ItemDB/13352/fd414111-bc9b-4297-878a-58fa7bf65565/2016118152847221.jpg" /></span></p>
A:A
B:B
C:C
D:D

<p>如图：</p><p><img width="424" height="32" alt="" src="http://file.open.com.cn/ItemDB/13352/7e90fed4-b3fc-4d0b-963f-ad606a124fd6/2016118154840612.jpg" /></p>
A:错误
B:正确

<p>如图：</p><p><img width="368" height="35" alt="" src="http://file.open.com.cn/ItemDB/13352/425ce003-6638-4935-94bf-dc04dd8ce2ad/2016118151636531.jpg" /></p>
A:错误
B:正确

<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">等价的两个矩阵，秩相等。</span>
A:错误
B:正确

<p><strong><em>A、B、C</em></strong>均为4阶方阵，且有<strong><em>AB=AC</em></strong>，则有<strong><em>B=C</em></strong>。</p>
A:错误
B:正确

<p>如图：</p><p><img width="330" height="39" alt="" src="http://file.open.com.cn/ItemDB/13352/425ce003-6638-4935-94bf-dc04dd8ce2ad/2016118151511383.jpg" /></p>
A:错误
B:正确

<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">设</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">n</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">阶方阵</span><em><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体; mso-bidi-font-weight: bold">A</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">、</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体; mso-bidi-font-weight: bold">B</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'; mso-bidi-font-weight: bold">、</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体; mso-bidi-font-weight: bold">C</span></em><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">满足关系式</span><em><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体; mso-bidi-font-weight: bold">ABC</span></em><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">=<strong><em>I</em></strong></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">，则</span><em><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体; mso-bidi-font-weight: bold">BCA</span></em><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">=<strong><em>I</em></strong></span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">一定成立。</span>
A:错误
B:正确

<p>如图：</p><p><img width="366" height="38" alt="" src="http://file.open.com.cn/ItemDB/13352/dcdf7b84-b2d1-474e-a1dc-9732493eefb0/201611815175905.jpg" /></p>
A:错误
B:正确

<p>如图：</p><p><img width="462" height="34" alt="" src="http://file.open.com.cn/ItemDB/13352/18bb9e13-f528-45ef-87e2-dfe952ce65a6/2016118151724336.jpg" /></p>
A:错误
B:正确

<p>如图：</p><p><img width="358" height="38" alt="" src="http://file.open.com.cn/ItemDB/13352/6a9e170f-5db2-429c-b609-29397d9d81d9/2016118154918344.jpg" /></p>
A:错误
B:正确

<span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">若</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">A</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">正定，则</span><span lang="EN-US" style="FONT-SIZE: 12pt; FONT-FAMILY: 'Times New Roman','serif'; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-fareast-font-family: 宋体">A</span><span style="FONT-SIZE: 12pt; FONT-FAMILY: 宋体; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA; mso-ascii-font-family: 'Times New Roman'; mso-hansi-font-family: 'Times New Roman'; mso-bidi-font-family: 'Times New Roman'">的特征值均为正。</span>
A:错误
B:正确