You should_______the wheels of your bicycle once a month.

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问题 You should_______the wheels of your bicycle once a month.

选项 A、fabricate
B、lubricate
C、elaborate
D、illustrate

答案B

解析本题的四个选项中，A项fabricate的意思是“制造；组装；伪造；杜撰”，B项lubricate的意思是“使滑润；给……上润滑油”，如If you never bother to lubricate your engine，of course it will seizeup．(如果你老是怕麻烦，不给发动机添加润滑油，发动机当然会失灵卡住啦。)C项elaborate的意思是“精心制作”，D项illustrate的意思是“(用图，实例等)说明，阐明”。

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考博英语

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You should_______the wheels of your bicycle once a month.

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Fromthehealthpointofviewwearelivinginamarvelousage.Weareimmunizedfrombirthagainstmanyofthemostdangerousd

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患者，男，46岁。咳逆上气，咳唾涎沫，口干咽燥，手足心热，舌红少苔，脉虚数。治疗应选

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