搜题
问题   更新时间2023/4/3 12:59:00

13.A={a11a21a31,a12a22a32,a13a23a33},B={a11a21a31,3a12 3a22 3a32,a13a23a33},p={1 0 0,0 1 0,0 0 1},Q={1 3 0,0 1 0,0 0 1},则B=( )
A PA
B AP
C QA
D AQ

参考答案:B
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