引言是什么

翻译:Because of its irritating effect on human,the use of phenol as a general antiseptic has been largely discontinued. because ,because of ,since ,for的区别 because与 because of的区别 because与because of的区别 暴雨天出行应注意什么 暴雨时应该注意哪些? 这些天武汉暴雨,能去旅行吗?我大概是17日上午11点左右坐武广高铁到青山区,住在武昌区如家快捷大东门店,20日中午退房回长沙.在武汉想游武大、华中师大、黄鹤楼、长江大桥、博物馆、宝 120~150词的英语演讲短文我是高一的.急需一篇120~150词的英语短文,课前演讲用.最好简单一点的,不要有很绕口的单词.主题最好贴近生活一点. 英语翻译我是在LOMA的书上看到的是Managed Care Plan中的内容好像是和Financing （of）health care service 相对的 请帮我写一篇英文文章,题目是the health effect of 911.如果可以的话,请给我文章的中英版本 The effects of poor health in china翻译 英语 ：连词成句 black,uncle ,in ,man ,is ,the ,Su Hai's (.) The man __black is Su Hai's father.提问 空格里该填in 还是with The man in black is Su Hai’s uncle.改成一般疑问句!The man in black is Su Hai’s uncle.改成一般疑问句怎么改啊?是Is the man in black Su Hai’s uncle?文盲哭了... 介词填空 The man 〔〕black is Su Hai's father He doesn't do well 〔〕PE 1.The black gloves (are) for Su Yang.2.This pair of gloves (is) for Yang Ling.1为什么are 2为什么是is? people usually eat mooncakes on mid-autumn festival 这个句子改为付定句 什么是 African-American 翻译 African-American African-American意思就是祖先是非洲人吗 I'm a 6'3 african American American male 这句英文是一位美国人的自我介绍,当中6'3 分不多还望见谅! LED显色指数多少才算好呢? African-American governors是什么意思? 正白与暖白LED的显色指数一样吗? 如何提高室内LED灯的显色指数?直接用高显的灯珠,光衰会较严重,有些人说加一个红光灯珠,采用补充红色光普的方法,不知道哪个大哥试验过了?效果好何?或者谁有更好的办法来处理此问题. 乙醇和一氧化碳化学性质不同的根本原因 百叶排风口是什么风口? 翻译：GENERAL EDUCATION OF CHINA 雅思作文：general education怎么理解?Some people believe that children should learn science in school,others think that it is not necessary to include science in general education.Do you agree or disagree with the statement?Give reasons for y 求一篇英语作文,题目是General education. General Certificate of Education的意思 pupils take the General Certificate of Secondary Education(GCSE) examination.