题目内容

【题目】__________ is known to us, the PRC was founded on October 1, 1949.

A. It B. As C. That D. What

【答案】B

【解析】

考查固定用法。句意:众所周知,中华人民共和国成立于1949101日。as is known to us众所周知,该用法是固定用法,故选B。

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