【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/58A9B58285A400280F0C2E34C66C801A.png title=QQ图片20160108161818.png alt=QQ图片20160108161818.png/>( )。
①
<img src=https://huaweicloudobs.ahjxjy.cn/7E933389C8E0FF10C6286E7A0762DCDC.png title=QQ图片20160108161826.png alt=QQ图片20160108161826.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/7791EAD7B10BF66A914F799269F46473.png title=QQ图片20160108161837.png alt=QQ图片20160108161837.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/C8357F23E069E99524E42255030E1025.png title=QQ图片20160108161845.png alt=QQ图片20160108161845.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/DD146190D5864B3CA8337F776ECD91C0.png title=QQ图片20160108161853.png alt=QQ图片20160108161853.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/5AF82AFF7C2FB1F104708ED32F16400D.png title=1.png alt=1.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/CD19747405ED6AC6A66D74E895B18A17.png title=a.png alt=a.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/02C63A0D120A7F3EAA1D01E533613653.png title=b.png alt=b.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/362E9F68CCB4C7E875C96EB482434530.png title=c.png alt=c.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/7407549009FE1FE0F17C53E0DD1D051B.png title=d.png alt=d.png/><img src=https://huaweicloudobs.ahjxjy.cn/CAA16C4D01261577B4AF31B70FB6E61F.png title=d1.png alt=d1.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/CBD6C4E3329300BA2B4DB50ECA7E5E02.png title=QQ图片20160108155944.png alt=QQ图片20160108155944.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/11D1F15E44596AD5C8C2E86C03402FA4.png title=QQ图片20160108155957.png alt=QQ图片20160108155957.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/98A96CF6116C36880D2A2BC496425C72.png title=QQ图片20160108160019.png alt=QQ图片20160108160019.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/8665592C104C38790261DCA18B2CEF38.png title=QQ图片20160108160028.png alt=QQ图片20160108160028.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/B30515098EE50A7DB84AF25954C13476.png title=QQ图片20160108160039.png alt=QQ图片20160108160039.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/C9C7EC3FA9927C26916BD72D4FEF40CA.png title=2.png alt=2.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/85F5E5260C0C36F8D69499CF524FDF67.png title=a.png alt=a.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/7497E09BC45A64342BC5D04C6EE21A81.png title=b.png alt=b.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/827822AB94A11A4A06211DE1B98715EA.png title=c.png alt=c.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/A8545EA0589F587FDF0E395B00C96502.png title=d.png alt=d.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/F22E424670D48EA8B00BF875A572F6D9.png title=QQ图片20160108102117.png alt=QQ图片20160108102117.png/><img src=https://huaweicloudobs.ahjxjy.cn/A7B8AB7EFE9A8EC7C2D83F83CE6AD874.png title=QQ图片20160108102145.png alt=QQ图片20160108102145.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/D1158E7E2A11A9F3FF830DEDCACFCE40.png title=QQ图片20160108102201.png alt=QQ图片20160108102201.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/5E167DEDAC45510EE9C136A2850BAEEB.png title=QQ图片20160108102216.png alt=QQ图片20160108102216.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/EAC49782558574996690E7E54E04DB82.png title=QQ图片20160108102237.png alt=QQ图片20160108102237.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/A97A1286364D01DF4D8429E6D441571A.png title=QQ图片20160108102252.png alt=QQ图片20160108102252.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/996CF93E83656380E4E15B9348326297.png title=2.png alt=2.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/35B0EE6248B08426C76977A74947A07C.png title=a.png alt=a.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/758C0D3B70A647111F7D916EBBC6B0C8.png title=b.png alt=b.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/BF178CC2AA754953DC34E93B19E66E69.png title=c.png alt=c.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/B005C7F6DB39E4EEFD1364641A6EBEE3.png title=d.png alt=d.png/>
【单选题】
有矩阵<img src=https://huaweicloudobs.ahjxjy.cn/C6797EF75EFE6CD2DAB8A269AFBC1616.png title=QQ图片20160107174137.png alt=QQ图片20160107174137.png/>下列矩阵运算可行的是( )。
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/E0422C097CECA95874B1F55FD9A8718F.png title=QQ图片20160108155415.png alt=QQ图片20160108155415.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/61BA6BCDF87808D1A74A3CE96923A50D.png title=QQ图片20160108155449.png alt=QQ图片20160108155449.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/3BB91EB6E052874B32BD66EBCB9A623C.png title=QQ图片20160108155501.png alt=QQ图片20160108155501.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/C59EF8FE4EBAC1DA3BFB003260A88E88.png title=QQ图片20160108155514.png alt=QQ图片20160108155514.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/777539F4B069324BEB0525AC3CD226B5.png title=QQ图片20160108155526.png alt=QQ图片20160108155526.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/711964D1CA5D3A0F1C363FEDDE9F9E1D.png title=QQ图片20160108110719.png alt=QQ图片20160108110719.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/CD839C58CCD85FB44DF45818DB7297B8.png title=QQ图片20160108110831.png alt=QQ图片20160108110831.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/C7AB4B181E7BCF9BFDCDA87CAEB15A85.png title=QQ图片20160108110843.png alt=QQ图片20160108110843.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/027FD4F419E4F24843FC35AC624287EC.png title=QQ图片20160108110855.png alt=QQ图片20160108110855.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/32D0EDF27D20E603E4BE73C2A2CB5B4B.png title=QQ图片20160108110908.png alt=QQ图片20160108110908.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/1AFC99781900F0FEF9532B439FF5298E.png title=QQ图片20160108110317.png alt=QQ图片20160108110317.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/CBD0531D565A064F1A805FB9269FE681.png title=QQ图片20160108110342.png alt=QQ图片20160108110342.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/0F08B8D90569A6905E1771059F9059E1.png title=QQ图片20160108110354.png alt=QQ图片20160108110354.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/2CBF05FA669D425DFE08C2E50FE925CA.png title=QQ图片20160108110406.png alt=QQ图片20160108110406.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/DCF53310CD5CF0FA0F2BEA2D26DB2BA5.png title=QQ图片20160108110417.png alt=QQ图片20160108110417.png/>