硝酸铵受热分解

乒乓球介绍 英语写一篇英文的乒乓球的介绍,急用 乒乓球好处的英文介绍 用英文怎么介绍打乒乓球?用英语介绍打乒乓球! 谁能给个用英文介绍乒乓球运动的文章字数不用太多,主要用于英语课上台演讲……（要求要有具体的规则介绍）&跪求, 运动鞋的英语单词 中国在乒乓球项目上的情况(英文介绍)可以是中国著名乒乓球运动员,中国乒乓球的里程碑,乒乓球在中国的地位,中国队乒乓球的贡献等 旅游鞋的英语单词怎么写? better可以做名词吗?既然不可以,那么为什么有expect……of sb 英语：这里的expect of sb是个固定搭配么?until he does what is expected [of him]知道他顺从为止. expect too much of sb. it is +形容词+for sb to do与 it is+形容词+ of sb to do有什么区别! 有expect sb sth这种结构么 山揸英语单词怎么写 英语单词咋拼 山,河,湖的英语单词 山的英语单词是什么? 山的英语单词翻译 为什么英语单词不管怎么背都记不住呢 拍球的英语单词怎么写 球的英语怎么写? 袋鼠的英文怎么读 怎么在英文上弄横线I love yuo.上面弄横线 英语题目 横线上填什么This dish t___ delicious ,doesn't it? It's our duty to help b___ people because they aren't able to see. 帮看看看这英语题选什么,A)Look for a more expensive hotel.B)Try to find a quiet place.C)Go to another hotel by bus.D)Take a walk around the city.原文M:I don't think we can find a better hotel around here at this time.W:Let's walk a little My name is Philip.Now I live in China.On Sunday my father often takes me to go to the movies.My favorite movies are action movies.My father likes them,too.Many youug people like this kind of movies.Because they're exciting.My good friend,Jim,likes th 关于英语的看阅读题写选择题,课文：John has five dollars to spend on a birthday present for his sister,Cindy.John goes to a shop.there are many kinds of things in the shop .but they are not right presents for his sister.“i want to cho 德国牌号1.4310对应的国内牌号 德国材料23CrNiMo7-4-7对应我国那个牌号呢?或者有没有人知道这种材料的成份是什么? 英语,横线上写的对吗? 一句英语句子,横线上写什么The students g____ very tirend at zhe end of zhe class 两道英语选择 1We ________ in that city for more than ten years before we moved here.A) stay B) would stay C) had stayed D) have stayed2__________ will the astronaut be away from the earth!– For about three weeks!A) How soon B) How long C) How