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【单选题】
大链轮的齿数不能取得过多的原因是 。A.
齿数越多，链条进入啮合的次数越多
B.
齿数越多，链传动的动载荷与冲击就越大
C.
齿数越多，链传动的噪声就越大
D.
齿数越多，链条磨损后，越容易发生“现象”
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知识点：
皮皮学刷刷变学霸
举一反三
【单选题】What's the Gwen's purposes in talking to Jackit?
A.
Disturbing the whole family.
B.
Disturbing herself and the children.
C.
Making her husband deaf.
D.
Disturbing nobody.
【单选题】铁路客货运输票据是国家批准的专业发票,属于有价证券,是铁路运输企业核算运输收入的(),铁路客货运输票据的各联任何单位不得增减。
A.
原始凭证
B.
基本凭证
C.
重要依据
D.
运输票据
【单选题】when did the whole family feel in real trouble?
A.
When the storm was overwhelming.
B.
When the French doors blew in with an explosive sound.
C.
When the front door was pushed open by a blast of water.
D.
When the water tasted salty.
【单选题】When did the whole family feel in real trouble?
A.
When the storm was overwhelming .
B.
When the French doors blew in with an explosive sound .
C.
When the front door was pushed open by a blast of water .
D.
When the water tasted salt y.
【单选题】What does 'spouse' probably mean?
A.
Wife.
B.
The mother - in - law.
C.
Child.
D.
The whole family.
相关题目：
【单选题】铁路客货运输票据是国家批准的专业发票,属于有价证券,是铁路运输企业核算运输收入的(),铁路客货运输票据的各联任何单位不得增减。
A.
原始凭证
B.
基本凭证
C.
重要依据
D.
运输票据