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src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F24f1ca0e68eb0d6682f48a8f0e970a92.png\">是\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc26cefeb4567d9f16ec6cd00ed4180e0.png\">矩阵,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4b1ab8afa221e8f4758077bb11074225.png\">是\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa65cb8f647edeb098629705366bd6cda.png\">矩阵.( )","v1",0,{"answer":32,"createTime":23,"id":33,"options":34,"question":35,"source":29,"type":30},[],139444751,[26,27],"若\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8ad892ad64d08521ce8a4867f892fa40.png\">且\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F46f0cefea39eefe3d346447395953904.png\">则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff81b43e6240a35d1478ae11e6b6a90cd.png\">( 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src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5bd2a326c9c5336a2b259b0a622af2cf.png\">( )",{"answer":47,"createTime":5,"id":48,"options":49,"question":50,"source":29,"type":30},[],139444754,[26,27],"设\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8c1c99723e99f53babc1b655496a4db4.png\">为同阶方阵,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F22bfb1b2464dc9b5a3737b57279640a0.png\">.( )",{"answer":52,"createTime":5,"id":53,"options":54,"question":59,"source":29,"type":30},[],139444755,[55,56,57,58],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F65d624a91d70ae9025d7d48c33a253b2.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc9bb1d6134ec1642c3871cb486db29d8.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8ba06ce6d1d16c519d313dd5a38ff3d4.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fb00c3ec46549cba119ff4ae40cae7195.png\">","若\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8c1c99723e99f53babc1b655496a4db4.png\">为\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1dac517aff62a020fcb3bbd85e78ab3f.png\">阶矩阵,则下式中( )是正确的",{"answer":61,"createTime":5,"id":62,"options":63,"question":68,"source":29,"type":30},[],139444756,[64,65,66,67],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F33db4f13653a397f1b765a5c6f21a4fe.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7c0e4d33a2c75541a5411edd486d57c8.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F99b2add7fdb7c554f4409f6ba61a9481.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F39ad080724c4acaaf1d4c8e3768c1f0d.png\">","若\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2f55d93f558480e880306cf26671348f.png\">,则下列运算有意义的是( )",{"answer":70,"createTime":5,"id":71,"options":72,"question":77,"source":29,"type":30},[],139444757,[73,74,75,76],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fba25db793ab3de70a8c4117ac031182c.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4f0aefbf8373e58fb6ecbeb069e3dce5.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F97f08b1de8afa73bf308324f8624068d.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F40d72351f512b2c321fe8e8a617bc093.png\">","若\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8737632ff42bc80e9161926169faddb9.png\">,做乘积\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F4b1ab8afa221e8f4758077bb11074225.png\">则必须满足( 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