—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

—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

—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

—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.

1. A.
   in which
2. B.
   through which
3. C.
   from which
4. D.
   during which

—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

1. A.
   in which
2. B.
   through which
3. C.
   from which
4. D.
   during which

—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