During the 1950s,R&.B changed modern music further and led to____we know as rockand roll.
A.as
B.what
C.that
D.which
B
题目分析:此处
what we
know as rock and roll.作to的介词宾语,what在宾语从句中作know的宾语。选项as正如……;that引导名词性从句,不作成分,没有意思;which意为:哪一个,根据句意此处没有这个意思。句意:在20世纪50年代,R&.B进一步改进了现代音乐,从此产生了众所周知的摇滚。
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