我国钢结构用热轧型钢主要是碳素结构钢和低合金高强度结构钢，在碳素结构钢中主要采用（）钢。 -题库考试答案搜索网

我国钢结构用热轧型钢主要是碳素结构钢和低合金高强度结构钢，在碳素结构钢中主要采用（）钢。

单选题

2022-11-05 00:51

A、Q235
B、Q345
C、Q390
D、Q420

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正确答案

A

试题解析

标签： 1A410000建筑工程技术建筑工程 CMS专题

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