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Moving parts of machines and motor vehicles have to be ______ regularly to reduce friction.
Moving parts of machines and motor vehicles have to be ______ regularly to reduce friction.
admin
2012-02-27
55
问题
Moving parts of machines and motor vehicles have to be ______ regularly to reduce friction.
选项
A、lubricated
B、fabricated
C、embedded
D、dictated
答案
A
解析
该句意为:机器和机动车的运动零件要经常使用润滑油,以减少摩擦。lubricate:润滑;fabricate:编造;embed:镶嵌;dictate:口述。
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在职申硕(同等学力)英语
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