问题
多项选择题
管道全断面修复方法有()。
A.焊接
B.喷涂法
C.内衬法
D.缠绕法
E.卡盘压紧固定
答案
参考答案:B, C, D
管道全断面修复方法有()。
A.焊接
B.喷涂法
C.内衬法
D.缠绕法
E.卡盘压紧固定
参考答案:B, C, D
阅读理解。 | ||||||||||||||||||||
The Smiths are from America. Mr. Smith works in a car factory in Shanghai. He is an engineer. He is a quiet man, and in his spare time he likes going fishing in the park. His wife Helen is a teacher. She teaches English in a middle school. Unlike her husband, she is very outgoing (外向的). She enjoys playing yoga with her Chinese friends. They've got a son, David. David is a primary school student. He likes playing football and basketball very much. | ||||||||||||||||||||
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