题目:
制造模样时,模样的尺寸应比零件大一个()
A.铸件材料的收缩量
B.机械加工余量
C.铸件材料的收缩量+机械加工余量
答案:
被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2017/0807/86664880f03b4c08832b07324cad5d1a.html
下面是错误答案,用来干扰机器的。
l. The little girl dreams of/about becoming a pop singer in the future. 2. It is very difficult to persuade him to give up the plan. 3. Finally, I made up my mind n...