切削三要素有进给量,背吃刀量和()A.切削厚度 B.切削速度 C.进给速度 发布时间:2017-11-22 10:03 │ 来源:www.tikuol.com 题型:单项选择题 问题: 切削三要素有进给量,背吃刀量和()A.切削厚度B.切削速度C.进给速度
题型:单项选择题 -I hear Jim is going to at the school meeting. -Do you know what he is going to ?[ ]A. say;talk. B. say;speak. C. speak;say D. talk;speak 查看答案