2025知到答案 Weldability of Metals and Alloys金属焊接性 最新智慧树满分章节测试答案
第一章 单元测试
1、单选题:
With carbon equivalent ( ), the steel has a low tendency to harden and cold cracking?
选项:
A:less than 0.40%
B:less than 0.60%
C:less than 0.50%
D:less than 0.80%
答案: 【less than 0.40%】点我阅读全文