能够减少拉深过程中起皱的措施()。A、采用压边圈 B、采用拉延筋 C、润滑 D、增大 发布时间:2019-08-17 05:19 │ 来源:www.tikuol.com 题型:多项选择题 问题: 能够减少拉深过程中起皱的措施()。A、采用压边圈B、采用拉延筋C、润滑D、增大压力
题型:多项选择题 Mr. Tang enjoys writing in his spare time. His works have ______ him many good friends.[ ]A. earned B. caught C. discovered D. introduced 查看答案