A bottle weighs less after air is taken out, ______proves that air has weight.

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问题 A bottle weighs less after air is taken out, ______proves that air has weight.

选项 A、we
B、it
C、which
D、what

答案C

解析 which引导非限制性定语从句。
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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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