Computers can do so many complex things,which ____ considered miraculous in the past.
题目
Computers can do so many complex things,which ____ considered miraculous in the past.
A.can be B.would have been C.should be D.had been
答案
B,虚拟
which,代表前面整句话
这件事在过去被认为不可思议,事实上,过去没电脑这东西
所以虚拟
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