设A,B,C均为n阶矩阵,若AB=C且B可逆，则下列哪一选项是正确的().
A. 矩阵C的行向量与矩阵A的行向量等价
B. 矩阵C的列向量与矩阵A的列向量等价
C. 矩阵C的行向量与矩阵B的行向量等价
D. 矩阵C的列向量与矩阵B的列向量等价
查看答案
向量组(I)与向量组(II)可以互相线性表出是向量组(I)与向量组（II）等价的___________条件;向量组(I)与向量组(II)的秩相等是向量组(I)与向量组（II）等价的___________条件。（填充要；必要；充分）
Q: When did the man first do a triathlon?
A. Last year.
B. In college.
C. Last week.
D. In high school.
How does the man feel about running?
A. Boring.
B. Scaring.
C. Exciting.
D. Interesting.
Why doesn’t the woman like swimming in the triathlon?
A. Because she fears that a big fish might eat her.
Because she fears that she would get lost in lakes.
C. Because she doesn’t want to scare away small fishes.
D. Because she doesn’t like swimming with many people.
微信支付 
支付宝支付