一台机器，不管多么复杂，其传动部分拆开后是由1个或者多个机构组成的。
查看答案
–Hello, may I make an appointment with the doctor?–( )
A. Sorry, he is busy at the moment.
B. Why didn’t you call earlier?
Certainly. May I know your name?
D. Sorry. He doesn’t want to see you.
– How about going to see a film together this evening? Let’s make it 6:30 at your place?– ( )
A. Yes, it does me good.
B. OK, I’ll be ready.
C. I’d like that very much.
D. What’s the best time to meet?
– Let’s make it round 8 o’clock.– ( )
A. You’re all right.
B. Yes, I can.
C. Please don’t.
D. Would some time later be convenient?
– Mike, I’m sorry to say that I won’t be able to keep my 10:30 appointment.– ( )
A. Let’s make it 11:30 then.
B. What happened?
C. You disappoint me.
D. You can’t do so.
微信支付 
支付宝支付