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【单选题】
向量组 线性相关的充分必要条件是( )A.
中每个向量可由其余向量线性表示
B.
中至少有两个向量成比例
C.
中至少有一个向量可由其余向量线性表示
D.
中的任一部分组线性相关
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A.
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B.
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C.
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A.
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B.
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D.
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