请问有it is proved that

来源：学生作业帮编辑：作业帮分类：综合作业时间：2024/05/22 07:34:13

请问有it is proved that
我记得有it was proved that 不知道有没有it is proved that

从意思上来说
it was proved that...是指“（在过去）被证明.”的从句
所以可以存在时态的差别 “（在现在）得到证明...”
楼上的,这里it没有用被动是因为it在这里是形式主语,真正的主语在that后面的从句,it只是为了避免句子的头重脚轻而加上并调换了位置的,无实际意义,就算是翻译时也要隐去
你说的那种实际是it所指代事或物的“被证明”,这个it是有实际意义的了

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