用模具将平板毛坯冲压成形为任意形状的开口空心件拉深。
查看答案
现代审计是建立在内部控制研究评价基础上的抽样审计,但对内部控制的依赖及对审计抽样的运用均非强制性的。如果注册会计师因为依赖内部控制或运用审计抽样而未能查出会计报表中的错报,则应承担法律责任。()
Decide whether the following paragraph is in general-to-specific pattern or not. In order to lose weight, we can replace unhealthy habits with new, healthy ones. For example, in reflecting upon your eating habits, you may realize that you eat too fast when you eat alone. So, make a commitment to share a lunch each week with a colleague, or have a neighbor over for dinner one night a week. Other strategies might include putting your fork down between bites or avoiding watching the news during dinner. A. Yes B. No
在冲压过程中,需要最小变形力区是个相对的弱区,而且弱区必先变形,因此变形区应为()。