【判断题】在平带传动中为了提高平带传动的承载力,包角不能太小,一般要求不小于150°。
【简答题】What is exactly a lie? Is it anything we say which we know is untrue? Or is it something more than that? For example, suppose a friend wants to borrow some money from you, you say “I wish I could help...
【判断题】在V带传动中为了提高平带传动的承载力,包角不能太小,一般要求不小于120°。
【判断题】二级推出机构可利用弹簧、摆块拉板、U形限制架、导柱滑块、楔板-滑块、八字形摆杆等与推出机构实现二级推出动作。
【简答题】Chosez l'antonyme du verbe. 1. Le temps se met au froid, portez des vêtements chauds . A. Frais B. léger C. doux D. lourds 2. Il a changé de travail, son revenu a augment é . A. a baissé B. a cru ...
【简答题】What is exactly a lie? Is it anything we know is untrue? Or is it something more than that?For example, suppose a friend wants to bor row some money from you, you say“I wish I could help you but I’m s...
【简答题】翻译下列一段话 Hangzhou Hangzhou est célèbre pour son lac qui, avec ses parcs, en fait un lieu de villégiature apprécié. D'après la population chinoise, les filles de Suzhou et de Hangzhou sont réputées être...
【简答题】What is exactly a lie? Is it anything we say which we know is untrue? Or is it something more than that? For example, suppose a friend wants to borrow some money from you, you say "I wish I could help...