________ is known to us all is that Antarctica is the coldest place on Earth.A．I_刷题宝

题干

________ is known to us all is that Antarctica is the coldest place on Earth.

A．It

B．As

C．What

D．That

上一题下一题 0.85难度单项选择更新时间:2013-08-20 04:33:18

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