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设b，a1，a2线性相关，b，a2，a3线性无关，则a1，a2，a3线性无关。

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设b，a1，a2线性相关，b，a2，a3线性无关，则a1，a2，a3线性无关。

A.正确

B.错误

参考答案:

答案：B

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