氧化铁和氧化亚铁的区别

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氧化铁和氧化亚铁的区别
用并列连词连接两个句子!he was tired .he went to bedhe made a promise.he didn't keep itmary is opening the door.john is greeting her guests The maths problem is difficult,but f___we work it out. 关于用连词连接两个句子的成分.例如:he was tired,so he went to bed.so引导的句子做的事什么成分?状语? This math problem is too difficult _____.A.for me to work it out B for me to work outC of me to work it out D of me to work out 选哪个说的详细点 为什么不选A? 这两个连词成句,怎么连 It's difficult for him to work out this maths problem 同义句是什么 He开头同义句的空格是这样 He [ ] [ ] [ ] out this maths problem the maths problem is too difficult .——————can work it outAmany studentsBfew students C a few studentsDsome students I usually go to school on foot.He always goes home by bike.两句同义句转换啊! 急i usually go to school on footon foot 画线提问 【 You should have some patience then.】的意思.:What do you think of your new roommate?W:Well,she's a bit untidy.Apart from that,she's really sweet.M:You should have some patience then.【 You should have some patience then.前后无法连贯. 求一些好看的英语读物.英语水平到高二的,不要太难了,最好容易读懂,好玩一点之类的. 推荐一首很好听的英文歌 经典哦 patience 耐心take that合唱团的 超级好听 就这一首是最近的最爱 推荐几本有意义,好看的英语读本. 给大家推荐首英文歌,Patience 请你推荐一下好看的英语读物我是高中生,想看一些优秀,又易懂的读物,请你推荐一下 英语优美短句..必须是英语书籍里的..要5本书....每本5句..注明出处..... Tom r----- to do the work,so I had to ask John to do it instead. give-and-take,genome这两个词分别是什么意思 黑人奴隶的贩卖对现在的世界有什么影响? 美国的黑人奴隶制与古代奴隶制度有什么不同? 最早的黑人奴隶在美国是被怎样对待的? we have an English class意思是? 英语翻译请问"库布其沙漠"、"希拉穆仁草原"和"成吉思汗陵"怎么翻译?一般来说是翻成英语,我要写作文的。 内蒙古语翻译在线 、宝贝 、 两个字蒙古语怎么写 英语翻译 英语翻译一定要准确,不肯定的就别写 8.7 It is __ for us to deal with. A.an enough difficult situation B.such a difficult situationIt is __ for us to deal with. A.an enough difficult situation B.such a difficult situation C.too difficult ___with difficult situation ,he dicided to ask his teather for helpa .to face b.having faced c.faced d,facing请说明原因 黑人是公元多少年被当作奴隶卖到欧洲的?斯巴达克斯的时代距今2000多年,罗马帝国初期就有黑人了?我记得欧洲帝国主义都是600多年前殖民非洲的啊? 欧洲殖民是从什么时候开始从非洲向美洲贩卖黑人奴隶的 初中生需要知道的英语短语都有哪些? 马克思的话反映了怎样的历史事件?欧洲资产阶级为什么要贩卖黑人奴隶