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
A clean environment can help the city bid for the Olympics, which ______ will promote its economic development.
#25449
A
in turn
B
in fact
C
in return
D
in nature
I don’t like Tom’s way of behaviour, but ________ I admire his great knowledge.
#26977
A
in other words
B
on the other hand
C
for one thing
D
as a matter of fact
Silk from China found its way to India, the Middle East and Rome, spices(香料) and glass, which was not known to China.
#26259
A
in exchange for
B
in return
C
in change for
D
in need of