问题
问答题 简答题
锅炉的检验工作包括哪几个阶段?检测方法有哪几种?
答案
参考答案:
锅炉的检验工作包括制造、安装、在役三个阶段。检测方法有非破坏性检测和破坏性检测两种方法。
锅炉的检验工作包括哪几个阶段?检测方法有哪几种?
参考答案:
锅炉的检验工作包括制造、安装、在役三个阶段。检测方法有非破坏性检测和破坏性检测两种方法。
完形填空 | ||||
I have(有) three friends. 1 are Kangkang, Maria and Fred. Kangkang is thirteen. Maria and Fred 2 fourteen. Kangkang is from China. Maria and Fred are from the U.S.A. Maria is 3 China now. 4 in Class 4, Grade 7. She and Kangkang are in the same class. 5 telephone number is 8267-6858. I like(喜欢) my friends. | ||||
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