Output is now six times ______it was before liberation.

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问题 Output is now six times ______it was before liberation.

选项 A、that
B、which
C、what
D、of which

答案C

解析 what在句中即充当连词又充当成分,即从句中的表语。其他选项不具备这个功能。
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本试题收录于: 英语题库普高专升本分类
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