题目内容

矩阵的乘法满足消去律.

A. 对
B. 错

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若矩阵可逆，则其逆矩阵唯一.

A. 对
B. 错

矩阵的乘法满足交换律.

A. 对
B. 错

A: How ________ you usually go to work?B: I usually drive my car to the museum.

A: That's also convenient, __________ it?B:Yes, it is. I can take Bus No. 16, too.