There are a lot of computers in the lab,and they need professional __________ to make sure they can be in a good state.
#82302
A
operation
B
maintenance
C
service
D
advice
推荐题目
When talking about China, people often _________ it with the Yellow River.
#68409
A
associate
B
reveal
C
worship
D
respect
(2009浙江宁波质检)The building around the corner caught fire last night．The police are now _______ the matter．
#83668
A
getting through
B
working out
C
looking into
D
watching over
—What’s wrong with your ipad? The sound is not clear.—Yes. It has been broken for some time.
#73058
A
come out
B
coming out
C
to come out
D
came out
The agreement indicates that the two companies will _____ with each other again.
#70533
A
team up
B
keep up
C
look up
D
pick up