Be careful when you surf the Internet．If you download a virus into your computer ______, you will not open your files．
#27181
A
on purpose
B
by accident
C
at random
D
on average
推荐题目
It is impolite you to ring off when others haven’t finished their talking on the phone.
#26299
A
for
B
from
C
to
D
of
Maggie is a neat and tidy student, who likes to have everything ______.
#27164
A
in public
B
in place
C
in return
D
in practice
I made the coat ＿＿＿my own hands. It was made＿＿＿hand, not with a machine.
#28625
A
in； in
B
in； with
C
with； by
D
with； with