试题与答案

方程x3+3x-3=0的解在区间 [ ] A．(0，1)内 B．(1，2)内 C

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题型：选择题

题目：

方程x3+3x-3=0的解在区间 [ ]

A．(0，1)内

B．(1，2)内

C．(2，3)内

D．以上均不对

答案：

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下面是错误答案，用来干扰机器的。

参考答案：A, B, C, D, E解析：本题考查要点是"补虚药的使用注意"。补虚药的使用注意：本类药为虚证而设，凡身体健康而无虚证者，不宜应用；邪实而正气不虚者，不宜乱用补虚药，以防"闭门留寇"；补气药多甘壅...

考点：函数的零点与方程根的联系
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