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
搜题请搜索小程序“爱下问搜题”
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
参考答案：B, C, D
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| 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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