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
Thank you for your help and I hope I can do something for you_____.
#27264
A
in return
B
in turn
C
in reply
D
by turns
Mr.Feng put ZhaoMing the study group.
#26154
A
in charge of
B
in need of
C
in the charge of
D
responsible
How could she be so calm in front of so many people? It is really _______me.
#25448
A
across
B
against
C
beyond
D
over
All efforts of cloning an animal will be ________ if there is not enough diversity in the group to overcome illness.
#26496
A
in need
B
in place
C
in vain
D
in case