------ The authors of computer viruses are geniuses.------ I agree. They can apply their wisdom to other net technology ________ human beings can benefit.
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A
in which
B
through which
C
on which
D
from which
推荐题目
One of the most interesting places in Beijing____the foreigners want to visit is the Great Wall.
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A
which
B
that
C
what
D
where
Last winter, many places of southern China were struck by heavy snowstorms, __________more than 120 people were killed.
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A
from which
B
for which
C
at which
D
in which
Mr. Smith is quite generous and warm-hearted, a person______ you can turn when having trouble.
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A
for whom
B
with whom
C
to whom
D
of whom