As is known to all.是否为从句,若是从句,那么此从句中的主语又是什么

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As is known to all.是否为从句,若是从句,那么此从句中的主语又是什么

As is known to all,是非限制定语从句,在从句中 As 作主语,例如:As is known to all,* belongs to China.众所周知,*属于中国.(As 在句中表示* belongs to China.整个句子 )as 引导定语从句时,位置比较...