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【单选题】
设【图片】矩阵【图片】【图片】 其中【图片】是3 维列向量. 若【图片】线性无关, 则【图片】线性无关的充要条件是( ).A.
能由 线性表示.
B.
能由 线性表示.
C.
矩阵A 与B 等价.
D.
向量组 与 等价.
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