Question

------ The authors of computer viruses are geniuses.
------ I agree. They can apply their wisdom to other net technology ________ human beings can benefit.

A．in which

B．through which

C．on which

D．from which

Answer 1

D

考查定语从句。先行词为other net technology，短语：从什么当中获益benefit from,所以用from which，which 指前面的先行词，故选D。