焊接操作机是将工件准确送到并保持在待焊位置或以选定的焊速沿规定的轨道移动工件的机械装置。
1、正确错误
暂无解析
____thecenterofourplanetarysystemwasconsideredasheresybythechurchintheMiddleAges.
Thecaris_____expensive_____hecan’tbuyit.
汉译英:朋友之间,情趣相投、脾气对味则合、则交,反之,则离、则绝。朋友之间再熟悉、再亲密,也不能随便过头、不恭不敬,这样,默契和平衡将被打破,友好关系将不复存在。每个人都希望拥有自己的一片私密空间,朋友之间过于随便,就容易侵入这片禁区,从而引起冲突,造成隔阂。待友不敬,有时或许只是一件小事,却可能已埋下了破坏性的种子。维持朋友亲密关系的最好办法是往来有节,互不干涉。
Maria:Doyouthinkyouwillgetapayrisenextyear?
Leo:______.
Writing:
Astatementgoesthat“onlythroughmistakescantherebediscoveryorprogress”.Towhatdegreedoyouagreewiththisstatement?Writeanessayofabout400words.
Inthefirstpartofyouressayyoushouldstateclearlyyourmainargument,andinthesecondpartyoushouldsupportyourargumentwithappropriatedetails.Inthelastpartyoushouldbringwhatyouhavewrittentoanaturalconclusionormakeasummary.
Youshouldsupplyanappropriatetitleforyouressay.
Markswillbeawardedforcontent,organization,grammarandappropriateness.Failuretofollowtheaboveinstructionsmayresultinalossofmarks.