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【简答题】
机车上使用的减振器可分为两大类,一类为有摩擦阻力的摩擦减振器,另一为具有粘着阻力的 。
拍照语音搜题，微信中搜索"皮皮学"使用
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皮皮学刷刷变学霸
举一反三
【单选题】What does a man do when he cannot get exactly what he wants?
A.
He buys something that is similar enough to the ideal one.
B.
He usually does not buy anything.
C.
At least two of his requirements must be met before he buys.
D.
So long as the style. is right, he buys the thing.
【简答题】引张线要求两个端点稳定，否则要Y成果进行改正( )
【简答题】Canada will prohibit smoking in all offices later this year.