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Whichisknowntoall,theearthrunsaroundthesun,为什么将Which改成As

题目详情
Which is known to all,the earth runs around the sun,为什么将Which改成As
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答案和解析
语法问题,记住就行.如果中间无逗号,就改为It is known to all that the earth runs around the sun.