皮皮学，免费搜题
登录
搜题
【简答题】
材料经过淬火后获得淬硬层深度的能力我们称为( )。
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
反馈参考答案：
举一反三
【简答题】完形填空 It is often said that politeness costs nothing.In fact, 1 hearing the phrase 'thank you' or 'well done' means the same to employees as a modest pay 2 , researchers say. Praise and encouragement a...
【简答题】75% of the earth’s suce is covered 1 6 water. However, the world is not only hungry but also thirsty for water. It seems 1 7 to you, isn’t it? In fact, about 97% of water on the earth is sea water ...
【简答题】什么是直流电机运行的可逆性?
相关题目：
参考解析：
知识点：
题目纠错 0
发布
