聚氯乙烯宽幅卷材热风焊接法施工,卷材铺贴应垂直于屋脊方向,由上至下铺贴,要保证顺直、平整、没有皱折,搭接位置留量尺寸准确,并应使卷材下面的空气排出。
参考答案:对
补全对话。
(Jenny and Nancy meet on the street) J=Jenny; N=Nancy
J: Hello, Nancy. 1 ?
N: Fine, thanks, Jenny.
J: I heard you went somewhere for vacation. 2 ?
N: Well, I have been to Hainan Island with my cousins.
There are too many exciting.things there, especially diving (潜水) in the real sea!
J: 3 ! My parents and I will go there, too. What should we take?
N: A camera, sunglasses, umbrellas and some cool clothes.
J: OK, thank you. 4 ?
N: You can get there by plane. Because it's too far away. 5 .
J: Thank you! I think we sure will.
1.______ 2.______ 3.______ 4.______ 5.______
须将粉尘去除后,方可用大量清水冲洗的是()
A.强碱烧伤(不包括生石灰)
B.电弧烧伤
C.电接触伤
D.生石灰烧伤
E.硫酸烧伤