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【判断题】
圆锥齿轮的轮齿有直齿、斜齿和曲齿等类型。
A.
正确
B.
错误
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举一反三
【单选题】Passage 3 Questions 11 to 15 are based on the following passage: Scientists in India have invented a new way to produce electricity. Their invention does not get its power from oil, coal or other fuel...
A.
Because bullocks have long been used by Indian people
B.
Because bullocks walk slowly and are easy to control.
C.
Because there are few non-working bullocks in India
D.
Because there is not enough oil in India.
【多选题】关于圆锥齿轮描述正确的有( )。
A.
可以用来实现两相交轴之间的传动；
B.
圆锥齿轮的当量齿数也为整数；
C.
可以用来实现两平行轴之间的传动；
D.
圆锥齿轮的传动比可以用齿数反比计算。
相关题目：
【单选题】Passage 3 Questions 11 to 15 are based on the following passage: Scientists in India have invented a new way to produce electricity. Their invention does not get its power from oil, coal or other fuel...
A.
Because bullocks have long been used by Indian people
B.
Because bullocks walk slowly and are easy to control.
C.
Because there are few non-working bullocks in India
D.
Because there is not enough oil in India.
【多选题】关于圆锥齿轮描述正确的有( )。
A.
可以用来实现两相交轴之间的传动；
B.
圆锥齿轮的当量齿数也为整数；
C.
可以用来实现两平行轴之间的传动；
D.
圆锥齿轮的传动比可以用齿数反比计算。
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