当对混凝土试件强度的代表性有怀疑时,可采用非破损检验代替混凝土标准试件,作为混凝土强度的合格评定。
参考答案:错
从A-G选项中选出能填入空白处的最佳选项补全对话。(选项中有两项是多余的)
A. Would you please tell me what to do as a guide?
B. What would you like to do?
C. How are you doing?
D. It will be held in your country, won't it?
E. Oh, congratulations!
F. It's very nice of you to tell me so much.
G. I'm afraid not.
A: Hi, Tongtong!
B: Hi, Bruce! 1._____
A: Very well, thank you.
B: I know the 30th Olympic Games is coming next month. 2._____
A: Yes, that's right.
B: Will you go back to your hometown soon?
A: Of course. And I will be a guide during the Olympics.
B: 3._____ I was once a guide in the 2008 Beijing
Olympics, too.
A: Thank you! 4._____
B: Sure! We can help people to find their ways. Also, we can introduce the places
of interest to the friends both at home and overseas.
A: Excellent! I hope to become a guide like you! 5._____ Thanks a lot!
B: You are welcome!
地壳里分布最广的元素是()。
A.氧
B.氢
C.铁
D.硅