焊接残余变形的产生主要是因为焊接过程中产生的（）大于材料的屈_爱下问搜题

搜题请搜索小程序“爱下问搜题”

问题单项选择题

焊接残余变形的产生主要是因为焊接过程中产生的（）大于材料的屈服强度。

A．焊接强度

B．焊接试验

C．焊接工艺

D．焊接应力

答案

参考答案：D

补全对话，情景问答

根据对话情景，有两个选项多余。

A. It will be one hour's drive.
B. I like watching animals.
C. So will I.
D. Yes, that's right.
E. It will rain tomorrow.
F. It won't rain tomorrow.
G. I'm not sure about that.

W: We have to meet the others at 8:30 at the reservation (保护区), don't we?
M: __1__
W: Do you know how long it takes to get there?
M: Yes. __2__
W: Can you tell me something about the reservation?
M: Well, it's an area that protects lots of different animals.
W: What kinds of animals can we see there?
M: __3__   I only know that there are many different kinds there.
W: I'm sure there will be some interesting animals there. I'll take my camera with me.
M: __4__   Should we take an umbrella?
W: I don't think so.__5__
M: Well, see you tomorrow then.

判断题

可疑商户是指商户或商户负责人（或法人代表）已被列入中国银联的不良信息系统。