There are a lot of computers in the lab,and they need professional __________ to

There are a lot of computers in the lab,and they need professional __________ to

题型:不详难度:来源:
There are a lot of computers in the lab,and they need professional __________ to make sure they can be in a good state.
A.operationB.maintenanceC.serviceD.advice

答案
B
解析
operation操作;maintenance 维护,保持;service服务;advice建议。这里指计算机的专业维护。
举一反三
Liu Xiang,in the 2004 Olympic Games,_________ the 110 m hurdle world record.
A.exchangedB.repeatedC.combinedD.equaled

题型:不详难度:| 查看答案
Korean culture is really exciting right now.The Korean Wave is __________ Asian countries including China.
A.sweepingB.strikingC.destroyingD.experiencing

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His school reports said that he is always ready to __________ a challenge.
A.receiveB.getC.acceptD.gain

题型:不详难度:| 查看答案
We __________ Mr.Cox to be a fine professor.
A.acceptB.knowC.thinkD.regard

题型:不详难度:| 查看答案
In dealing with public relations,we should make every effort to prevent the __________ in personality.
A.contactB.contrastC.connectionD.conflict

题型:不详难度:| 查看答案
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