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【单选题】
以下能传递较复杂运动的运动副接触形式是( )A.
车床上丝杠与螺母接触
B.
齿轮副
C.
滑块与导槽接触新
D.
内燃机中活塞与连杆接
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反馈参考答案：
举一反三
【多选题】When you meet your classmates for the first time ,you can say()
A.
Where do you come from?
B.
Which high school did you go to?
C.
What are your hobbies?
D.
Do you like this school?
【多选题】Whart is the first thing you say when you go into the restaurant?
A.
A table for two
B.
Can I have a table for four?
C.
Nice t meet you.
D.
Excuse me.
【单选题】When someone asks “Would you rather go out for a walk or stay at home?”, you may say_______.
A.
I’d rather stay at home than go out for a walk.
B.
I dislike going out for a walk.
C.
I found going out rather interesting.
【简答题】People like to say “Thank you” when others help them or say something kind for them. It is a very good habit. You should say “Thank you” when someone walking ahead of you keeps the door open for you, ...
【简答题】阅读理解。 When you want to go shopping, you will decide how much money you can pay for new clothes and think about the kind of clothes you really need. Then you just only look for those clothes. There're ...
【单选题】When you tell Mary you can go for a picnic only in a fine day, you’d better say_________.
A.
As long as the weather is fine, we can go for a picnic.
B.
Although the weather is fine, we can go for a picnic.
C.
No matter the weather is fine, we can go for a picnic.
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