在焊接过程中，工件受电弧热的不均匀加热而产生的内应力及变形是（）的。A.永久 B.残
题型：单项选择题
问题：
在焊接过程中，工件受电弧热的不均匀加热而产生的内应力及变形是（）的。
A.永久
B.残余
C.有利
D.暂时
题型：单项选择题
第二卷（非选择题 共 55分）
第一节：单词拼写：按照句意，根据所给的首字母或汉语提示，在空格出填出一个最合适的单词，注意单词的形式。（每小题1分，共10分）
1. I’ve made up my mind to be a ____________(杰出的) scientist when I grow up.
2. He gave an _________(令人难以置信的) explanation of the cause of the accident.
3. The show had a very large audience, r_______ from children to grandparents.
4. A n_______ is a place where you children are taken care of during the day while their parents are at work.
5.Flying across the Atlantic for the first time was a great _____________（成就）.
6.The plane crashed, killing all 200 people __________.( 在飞机上)
7. The beggar spent a lot of time with his dog, who became his closest _________(伙伴).
8．The car accident has caused p____________ damage to her eyesight; She will not be able to see thin
gs for the rest of her life.
9. Your plan sounds good; if you raise the plan at the meeting, I’ll ____________(支持) you.
10. Do you think the teaching in ___________(私立) schools is better than in state schools?