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src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Facb12c64aeb136f60512fa3ed8fa73c5.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa63cc7bb09d0aca6e6f07d1ed1c75be7.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffca34d3e71c538c360a4036159f8a01c.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcd2d81aa4fb246a3f211f8423b64734a.png\">","下列运算正确的是( )",{"answer":50,"createTime":21,"id":51,"options":52,"question":57,"source":29,"type":30},[],230431631,[53,54,55,56],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffa1f2ab1b28cb1aa90bd5faa8fdb20f2.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3d5e123f130caf8778d54a6970c37f2f.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F2435b239ea3533a70077fd2a7b2fb507.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff3346828bc0485a479f0b3bd55841d45.png\">","设\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F761bb4d7df77c707b6024812b4bf261a.png\">为三阶矩阵,则\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe4e38df26cfec0c5f6610e2055f7be9c.png\">( )",{"answer":59,"createTime":21,"id":60,"options":61,"question":66,"source":29,"type":30},[],230431632,[62,63,64,65],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9a27b91e766cf5376ad004ad96a322d7.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fdf2224403ee4bbde527cfa59ea0d890f.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Febe95fd79311d03d81a503d28178431e.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc7c68948f86e377690bf855c7c30c241.png\">","设有矩阵\u003Cimg 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