与平面垂直的单位向量怎么求

英语翻译I was just talking to Margaret when Jackson____A cut in B cut down C cut out D cut up peter didn't look well last year when i saw him.he ___ cigarettes then.填cut down on The two brothers ____ on the phone for 40 minutes.I wonder when they can put down the phone.A.were chatting B.chatted C.have been chatting D.have chatted我认为选d,c也可以为何答案选b 同义句转换.My brother became a doctor when he was 24.My brother became a doctor （ ） （　）（　）（　）　24. 请问英文同是外星人alien和extraterrestrial的区别是什么?谢谢~ catch one’s eye与catch one’s eyes都可以吗?课本上是单数的,可是英语报上的练习出现了复数,两种都可以吗? why don t you learn to sing english songs初二英语第八单元WHY DON'T YOU LEARN TO SING ENGLISH SONGS求全文的语法及有价值的向其他同学提出的问题比如说 enough前加什么?enough后加什么?suggest的用法?顺便把答案 到底是the apple of one's eyes还是the apple of one's eye?也就是说eye到底是单数还是复数? 外星人中ET中的外星人ET为什么会要死? 但又为什么活下来了? —Would you show me _____an E--mail ,please —First time for me .A.how to make B.how to send C.which to make D.when to send为什么选B而不选D Would you show me___an e-mail,please?选哪个?A.how to make B.how to send C.which to make D.when to send为什么选A不选B答案是选的A 跪求日本组合 Tiara 的《My best friend》的罗马拼音拜托了各位 谁能给我她们的《My best friend》罗马拼音啊! Would you please send me the salary listing of JUL请问：应如何修改? 用How to spend each day为题目写一篇英语作文,60~70单词, Laugh a little more .Love myself a little more .Now I promise to you .And I can swear to you .中文翻译下啦 百度的那个不太准确 my Australian friends invited me to a barbecue last weekend ,_____was really very kind of them用who 还是which 1.I'm just a sunflower,waiting for my only sunshine I'm just a sunflower,waiting for only sunshine belonging to me.是什么意思 I’m just a sunflower,waiting for my only sunshine. 太感谢了但是还有两篇哦：What do l eat for three meals How to spend our pocket money you are the apple in my eyes..更深的意思是什么? 语序 i don't know what's the matter 还是 i don't know what the matter is you are the apple in my eyes的意思喔. how to spend money英语口语对话 Do you know Facebook? 求大神帮忙写下英语作文你叫王红,给mark一封信,写信日期：2011年12月25日内容：1感谢mark 邀请你星期5六点与他一起参加一个晚会,你接受邀请.2你第一次出席这种场合,向mark咨询该如何着装.如 Can you tell me ______?A.what's the matter with him B.what the matter with him isC.what happened with him D.what with him happened 我只知道who后面接完整的句子这个怎么弄, watch out的用法watch out 的用法 There were a lot of people in the street .改为否There were a lot of people in the street .改为否定句 what is the distance from the earth to the moom?what is it to mars?what is it to the nearest star? Friendship is to our life what salt is to dasher 急 There is ______ in the room.A．no dog B．no dogs C．no a dog D．not dog请说明no后跟名词的用法,选择的答案可能与问题太近了，再说明一下：A.no dog B.no dogs C.no a dog D.not dog