—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

C


解析:

考查介詞與關(guān)系詞引導(dǎo)的定語(yǔ)從句。benefit from通過(guò)……獲利。因此，選擇C項(xiàng)。   

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