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src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5b3b9d1a315e2b1ae7c7e1d4ed8efce2.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa8f1cb73a0406c7b3f7e01d920eed7cb.png\">",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":28,"type":29},[],103278029,[75,76,77,78],"AC","BC","A+B","AB-BC","设A为3\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F779fbb7000a5a78a8c32af8afc718d18.webp\">2矩阵,B为2\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3cd617bf3ef0736a0f4e766831e60a69.webp\">3矩阵,C为3\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3cd617bf3ef0736a0f4e766831e60a69.webp\">3矩阵,则下列 运算有意义",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":28,"type":29},[],103278030,[84,85,86,87],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3a3f194bcbb138e0d33cf24064f31149.png\">","\u003Cimg 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