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．operation | B．maintenance | C．service | D．advice |
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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．exchanged | B．repeated | C．combined | D．equaled |
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Korean culture is really exciting right now.The Korean Wave is __________ Asian countries including China.| A．sweeping | B．striking | C．destroying | D．experiencing |
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His school reports said that he is always ready to __________ a challenge.| A．receive | B．get | C．accept | D．gain |
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We __________ Mr.Cox to be a fine professor.| A．accept | B．know | C．think | D．regard |
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In dealing with public relations,we should make every effort to prevent the __________ in personality.| A．contact | B．contrast | C．connection | D．conflict |
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