钠与乙醇反应注意事项

英语作文：Please Don't Cut Down Trees Freely!题目的要求是这个：Write an article in about 60 words on the topic 'Please Don't Cut Down Trees Freely!'急用!最好今天能回答! we have received testing message i am very excitedto have received an e-mail from you.既然有from you的限制 为啥不用the Email You have received a new message from Logan on Friendster.The message was sent on 中国戏曲的角色分为哪些 simon（live）with his family in Nanjing now 我国传统的戏曲角色分为_________四大当行,《社戏》写到的角色有__________,在我国的戏曲剧种里,被称为“中国戏曲之母”的是____________：被称为“东方歌剧”的是___________. 中国戏曲的音乐体制分为哪两大类? Tom----- (have)a lunch with his family last Spring festival.Mikeand his sister -----(be)injapanlast year .-----(do)you------（go)to parties yesterday.Children 's day is --(come). miss是失去的意思还是想念的意思? miss的意思是想念还是失去? you have a mail 安全标志 什么是安全标志?可分为那几类? 这是什么安全标志? 好习惯作文,说有什么事的 怎么快速自学英语我在澳洲但是英语一点基础都没,现在16岁了怎么办啊但是我音标不行，词汇又少，不知道怎么去学这英语，因为我以前也没什么好好去学英语 missing you 是想念你还是 错过你?如果只可以选择一个,那么是哪一个呢? do u have msn have you messenger什么意思 Do you have the messenger we can write about?what's the meaning?我呢 是和丹麦那边的同学发的E-mail it sounds really nice!gives me great pleasure to see something more to it.My school is quite different from over there by you.Do you have t 写一篇New Term plan的英语作文不少于十句（6年级的哈） MSN:if you have msn,could you join me?hello everyone,I am a white-collar at Guangzhou.but I am single,so I want to find a girlfriend through the msn.welcome everybody who have the same idea.I am always online.ok,thank you! send letter write letter这两者有什么区别么?She( ) letters to some important persons.这句话中应该用那个呢？对不起，打错了 Must I tell him the news now?No,you( ).A.couldn’tB.needn’tC.can’tD.mustn’t (not to tell,don't tell,no telling)him the secret,will you? you must tell him the news as soon as you himA.see B.seesC.will see D.is seeing They send an e-mail ______ a betterA.instead of write B.instead of writing C.instead writing D.instead to write Is she still alive that her luck.这句符合语法吗? There is still_______ that they will find her aliveA.a remote chanceB.no chanceC.not less chanceD.chance为什么,请解析, I have a/an ____ that he is still alive.(feeling,impression) 选哪一个?为什么? (that he is still alive) is sheer luck. 能不能把括号中的that 去掉?that 做的什么成分啊?和后面的he is still alive 是同位语吗