首页
›
答案
›
题库
›
慕课
›
未分类
Metals are commonly divided into two classes:（）metal and（）metals.
Metals are commonly divided into two classes:（）metal and（）metals.
正确答案：ferrous nonferrous
标签：
材料概论
上一条：
Most ceramic materials have high hardness and high-temperature strength but tend to be（）.
下一条：
Most composite materials consist of a selected（）or reinforcing material and a compatible resin（）to obtain the specific characteristics and properties desired.