In the 2008 Beijing Olympics,China won 8 gold medals in weight-lifing,4of( ) won by women.
问题描述：
In the 2008 Beijing Olympics,China won 8 gold medals in weight-lifing,4of( ) won by women.
答案选them 请帮看一下为什么不选which?
答
不是这个原因,4 of them 是 8 gold的同位语.这里不是定语从句!