在分度头上用两顶尖定位轴类零件时，能限制（）个自由度。 A.一 B.四 C.六 D.

情景交际。（15分）
(A)选择方框中的句子完成对话，其中有两项多余。(10分)
A:What’s the matter, Mrs. Smith?
B: 小题1:  I can’t do any work, doctor.
A:Do you have a cough?
B:No. I don’t have a cough.
A: 小题2: 
B:Yes, I sleep very well.
A:Do you have breakfast every morning?
B:No. I don’t have breakfast. And I have only a little food for lunch and supper because I want to keep thin.
A:Oh, I see.   小题3: You need to eat more food and have three meals a day.   小题4:
B:OK. I will do like that.
A: 小题5:
B:Thank you very much.

A.I feel very well. B.I hope you will get better soon. C.Do you sleep well at night? D.I’m not feeling well. E.And do some exercise every day. F.You need to eat less food. G.There is nothing serious.