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【判断题】
齿数少于 17的直齿圆柱齿轮,无论用什么方法加工齿轮都会产生根切现象。A.
正确
B.
错误
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反馈参考答案：
举一反三
【单选题】According to the author, when can CMA be applied to the road?
A.
In the near future.
B.
Right now.
C.
After its cost halved.
D.
Cannot tell from the passage.
【简答题】定形尺寸有,定位尺寸只有一个的线段称为()
【单选题】The author believes that we should pay ______.
A.
little attention to applied subjects
B.
due attention to the public interest in free, shared knowledge
C.
more attention to the immediate needs and demands of our customers
D.
considerable attention to the commercial interest in the secrecy of research results
【单选题】以下关于换式动作的描述,正确的是:
A.
向后迈腿的时候右脚落在左后方
B.
两脚平行，贴于地面前后换式。
C.
向后迈腿的时候向高抬小腿向后蹬地
D.
换式时要保持身体自然放松和落地的站稳姿态
【单选题】The author applied for the teaching post because ( ).
A.
he wanted to gain some experience in teaching
B.
he had a good mind to move to the suburbs for a change
C.
he needed money and wanted to do something useful
D.
he wanted to get a degree
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