根据产品形状、用途及操作方式,聚氨酯泡沫塑料的生产工艺区分为块状发泡法,()和()。。
参考答案:喷涂法;浇铸法
阅读理解。
Good morning, boys and girls. I'm Li Dawei. I'm an English boy. Li Dawei is my Chinese name.
Look, here is a picture of my family. The tall man is my father. His name is John Cooper. This is
my mother, Mary Brown. Who's that little girl? She is my sister, Amy. Can you find me in the picture?
I'm the boy in a blue T shirt.
1. This is _____ family.
A. a Chinese
B. an English
C. a Japanese
D. an American
2. There are _____ people (人) in the picture.
A. one
B. two
C. three
D. four
3. _____ is my father.
A. Mary
B. John
C. Mrs. Cooper
D. Mr. Brown
4. _____ is my mother.
A. Amy
C. Mary
5. What color is the boy's T-shirt?
A. Brown.
B. Black.
C. Blue.
D. Red.
《继电保护和电网安全自动装置现场工作保安规定》要求,执行和恢复安全措施时,需要二人工作。一人负责操作,()担任监护人,并逐项记录执行和恢复内容。