______ it is expensive or not is the most important question.

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问题 ______ it is expensive or not is the most important question.

选项 A、That
B、Whether
C、If
D、How

答案B

解析从句子结构上可以判断出[B]为"Whether…or not"结构，而[A]选项和[D]选项明显错误，[C]选项不能引导主语从句。因此[D]为正确选项。

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公共英语二级笔试

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