扩管器加紧紫铜管前,露出夹具表面高度应()涨头的深度。
A、大于
B、小于
C、等于
D、约等于
参考答案:A
情景交际。(根据所给情景选择最佳答案。)
1. — What bad news! Michael's mother is ill.
— _____[ ]
A. Thank you.
B. I am sorry to hear that.
C. Yes, of course.
D. Not at all.
2. — What is the teacher like?
A. He is very patient with us.
B. He is working very hard.
C. He is very handsome.
D. He is very tall.
3. — I'd like to go shopping now.
— _____ [ ]
A. I don't like.
B. Would you like to go with me?
C. All right.
D. Thank you.
4. — I'm sure that selling rice and dumpling dishes can make a lot of money.
A. All right.
B. That's all right.
C. You are right.
D. I am sorry.
5. — Welcome to our school food festival. Please come this way.
B. Sure.
C. You're welcome.
D. That's OK.
下面概念中,不属于面向对象方法的是( )。
A.对象
B.继承
C.类
D.过程调用