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【单选题】
There are a lot of computers in the lab,and they need professional to make sure they can be in a good state.
A.
operation
B.
maintenance
C.
service
D.
advice
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参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】When I got to the checkout counter, I realized I didn't have enough money, so I kept _____ I really needed and left the rest. [ ]
A.
what
B.
which
C.
that
D.
this
【单选题】The captain stood by the window, _____ he could see the top of the tower.
A.
where
B.
from which
C.
from where
D.
which
【单选题】His parents ____ him to work in a big company but he failed them. [ ]
A.
suggested
B.
demanded
C.
recommended
D.
hoped
【单选题】On stepping into the office, the girl was frightened to find that the whole office was filled with ______ looked like tiny worms.
A.
that
B.
something
C.
what
D.
anything
【单选题】Cheer up! ________things as they are and you will enjoy every day of your life. [ ]
A.
Taking
B.
To take
C.
Take
D.
Taken
【单选题】Tom: My brother will be surprised when he opens this package I’m sending.Jack: Why are you sending him a package?Tom: __________.
A.
It’s a new radio
B.
It’s his birthday
C.
It’s very expensive
D.
It’s too late
【单选题】The bridge was built in memory of the adventurer who was believed ______ the valley.
A.
to have been discovered
B.
to discover
C.
to have discovered
D.
having been discovered
【单选题】We were about to go out for a walk ________ it began to rain.
A.
while
B.
before
C.
as
D.
when
【单选题】—What do you think of the concert given by the famous Hong Kong singer? —Not so good．In fact, it _____ to be a great disappointment.
A.
turned up
B.
turned in
C.
turned down
D.
turned out