______ is known to all, the earth moves around the sun once a year.

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问题 ______ is known to all, the earth moves around the sun once a year.

选项 A、That
B、As
C、What
D、It

答案B

解析 分析句子结构可知,本句缺少一个连接词来引导非限制性定语从句,并且该连接词在从句中作主语,指代“the earth moves around the sun once a year”。四个选项中只有as合适,其引导的非限制性定语从句位置灵活,可置于句首,也可置于句末,且as有具体的含义“正如”。故选B。
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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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