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【单选题】
客流动态在时间上的不均衡性一般用时间不均衡指数Pt表示,其在一般线路的取值为
A.
1.2
B.
2.2
C.
3.2
D.
4.2
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【判断题】在平带传动中为了提高平带传动的承载力,包角不能太小,一般要求不小于150°。
A.
正确
B.
错误
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A.
酚酞
B.
硫酸镁
C.
液体石蜡
D.
甘油栓剂
【判断题】在V带传动中为了提高平带传动的承载力,包角不能太小,一般要求不小于120°。
A.
正确
B.
错误
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【单选题】泻下作用强并有利胆作用的药
A.
酚酞
B.
硫酸镁
C.
液体石蜡
D.
甘油栓剂
E.
大黄
【简答题】What is exactly a lie? Is it anything we say which we know is untrue? Or is it something more than that? For example, suppose a friend wants to borrow some money from you, you say "I wish I could help...
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