问题描述：
it was in the 29th Olympic Games——were held in Beijing ——China won
51 gold medals.
that that
后面的that是强调句吧,但请问前面为什么填that which为什么不成
51 gold medals.
that that
后面的that是强调句吧,但请问前面为什么填that which为什么不成
问题解答：
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