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【判断题】
短齿制齿轮与对应的正常齿制齿轮分度圆相同,而齿根圆和齿不同。A.
正确
B.
错误
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参考解析：
知识点：
皮皮学刷刷变学霸
举一反三
【简答题】Cohort effect
【单选题】Greenhouse Effect Ⅰ. Introduction Greenhouse Effect, the capacity of certain gases in the atmosphere to trap heat emitted from the Earth's surface, thereby insulating and warming the Earth. Without th...
A.
Y
B.
N
C.
NG
【简答题】additive effect
【单选题】Parents will surely their children.
A.
make no effect on
B.
have some effect on
C.
have no effect on
D.
make some effect on
【简答题】替代效应和收入效应(substitution effect and income effect)
【单选题】His talk had __________ me.
A.
a big effect to
B.
a deep effect on
C.
a deep effect for
D.
a deep affect on
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