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【判断题】

减速器中的轴、齿轮、箱体都是标准件。

A.
正确
B.
错误
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
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.

【单选题】In the last two hundred years there have been great changes in the method of production of goods. This is now also true of the building industry; for mechanization has been introduced. System building...

A.
the latter uses ready-made internal features
B.
panels are cast in a level position
C.
the former is used to build walls and floors while the latter to construct bathrooms or bedrooms
D.
the former is more expensive than the latter

【多选题】减速器的功能包括( )

A.
增加速度
B.
降速
C.
增矩
D.
改变传动方向

【单选题】抽油机减速器漏油时应()。

A.
拆洗清理呼吸阀
B.
降低载荷
C.
调慢冲次
D.
调平衡