已知e1e2是平面内两个不共线的非零向量e1=21e2=2-2AB=2e1+e2BE=-e1+揽恩他

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已知e1e2是平面内两个不共线的非零向量e1=21e2=2-2AB=2e1+e2BE=-e1+揽恩他
He thinks he can play the erhu 改为否定句 play erhu 要+ 要确定的 play the erhu. What are you want to do on Sundays?找出并改正句中的错误,还要翻译 it was a great s__ to have the sports eeting last week Americans eat __ vegetables per person today as they did in 1910.A.more than B.as twice as many C.twice as many as D more than twice as many 演讲稿关于科学家急求一篇关于一位科学家的演讲稿(2分钟之内,英文) play erhu 还是play the erhu?为什么 Play ( ) erhu,( )填什么:“the”还是不用?请给予正确回答,为什么有述说不用 he become angry easily because of the hard work改成the hard work ___ ___ become angry easily.(保持句意不变) he was awarded the prize because of his hard work.(保持愿意)he was awarded the prize ____ ____ his hard work 为什么是need help而不是need to help i need there to be someone and me 翻译 We have been talking about this topic _____ A.for a long time B.already C.yesterdayD:for hours选什么?为什么?还有Tom ____ watching China Open for hours during the seven-day vacation.A has been B was C had been D was being 选什么?理由?随 play Erhu要不要加the很多说法都说中国乐器前不加the,西洋乐器前才加the.新东方老师上课也是这么讲的,可是在初中课本里七年级下册73页单元小结里是加了the的.非常困惑,求权威解答! 是play erhu还是play the erhu? 演讲稿:我喜欢的科学家 i know that in many areas in the west ,children are in need of help.of help 怎么译,in need 呢怎么 翻译The old gentleman never fails to help whoever is in need of his help.谢谢 从动物进化的角度看,最高等的动物是(哺乳类还是鸟类) Can you play the erhu?还是Can you playing the erhu? ----will you play the erhu?----No,l( ) A.will B.can't C.won't选择一个最佳答案 高分求演讲稿《认识自我》如题.性别 男友善 大方 平时少说话爱睡懒觉 衣着不太整洁 做事喜欢走捷径 上进心不大 做起事来很用心 比较守时 ^^^^^^希望有人能帮我写个演讲稿.最主要是介绍 he works hard,because this is ( )important work A.a B.an C.the D./ I work hard this term,but peter works much----A hard B harder C hardest D the hardest 爬行类,鸟类,哺乳类 鸟类和爬行类哪个跟哺乳类相近? There____an English evening next Tuesday.A.was B.will be C.will have D.are going to beA will have B is to have C is going to have D is going to be 这四个选项,不是上面的 Would you like some bread .I would like a piece of breadWould you like some bread ----------.I would like a piece of breadA.Yes,please.B.No,thanks C.ok what does he need ( ) to help his mother with the housework.(do 为什么要使用UV返工水/返喷水/重涂水/返修水 UV返修水是怎么做的?