There are a lot of computers in the lab,and they need professional to make sure they can be in a good state.
#80920
A
operation
B
maintenance
C
service
D
advice
推荐题目
We have to some bigger companies for technical help.
#68323
A
turn up
B
turn to
C
turn over
D
turn down
—Do you think that housing price will keep_______in the years to come?—Sorry,I have no idea.
#83216
A
lifting up
B
going up
C
bringing up
D
growing up
Many children are ____ in the countryside when their parents flood into the cities for jobs．
#75466
A
left behind
B
left off
C
left aside
D
left out
He has behaved in the most extraordinary way recently. I wonder what can_____ his actions.
#65255
A
account for
B
answer for
C
search for
D
reach for
Many of us who have never been to Egypt always Egypt with the ancient pyramids.
#67801
A
associate
B
abolish
C
accumulate
D
acquire