问题
选择题
____is known to us is that China has won five gold medals in the 2010 Winter Olympic Games.
A．It
B．As
C．What
D．That
答案
答案：C
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____is known to us is that China has won five gold medals in the 2010 Winter Olympic Games.
A．It
B．As
C．What
D．That
答案：C