649.The authors of computer viruses are geniuses.
I agree.If they applied their wisdom to other net technology ______ human beings can benefit,it would be better.
A.in which
B.through which
C.from which
D.during which
650.Go _______ the gate and you'll find the entrance _____ the park ________ the other side.
A.through;to;on
B.along;of;on
C.down;to;at
D.up;of;by
649.答案是C;考查介词与关系代词引导的定语从句。benefit from 从…中受益。
650.答案是A;go through 穿过，经过；the entrance to the park 通过公园的入口处；on the other side在对面。
