问题描述：
What which从句
Sat里面有道题是这样的
Global warming trends,what play a big role in the melting of tropical glaciers like those on Mt.Kilimanjaro,may cause many ice caps to vanish within 20 years.
what在这应该变成which,解肆是什么what这里可以当2个which什么的然后看看合不合适.
Sat里面有道题是这样的
Global warming trends,what play a big role in the melting of tropical glaciers like those on Mt.Kilimanjaro,may cause many ice caps to vanish within 20 years.
what在这应该变成which,解肆是什么what这里可以当2个which什么的然后看看合不合适.
问题解答：
我来补答展开全文阅读