题目内容：

clothing made of the man-made fiber has certain advantages over() made of natural fiber like cotton
wool or silk.
a.that b which c what d one 、、
that 和which 在这里？

优质解答

A.THAT 确定
如果要用WHICH的话,应该是OVER THE CLOTHING WHICH MADE OF...
这里用THAT就是直接代替CLOTHING,就相当于中文里的那些~