单选题:A为n阶方阵,且A的第n列可由其余n-1个列向量线性表出,则下列结论错误的是(  )

题目内容:
A为n阶方阵,且A的第n列可由其余n-1个列向量线性表出,则下列结论错误的是(  ) A.r(A)≤n-1
B.A有一个行向量可由其余行向量线性表出
C.|A|=0
D.A的n-1阶子式全为0
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