判断两个向量组等价

我要取一个英文名字,我姓林我是女孩28岁,原名林飞婷 我想取个英文名,我的姓是：Chen英文名开头最好是c和s我是女的，取个英文名 狼图腾读后感1000字 其中要有名人的事例 回答用英语怎么说 狼图腾读后感1000字 我想给朋友起个英文名,起什么好?他的名字是 屈宏亮,尽量跟名字谐音.注：男名，希望能起好一点的。 《狼图腾》读后感,至少1000字. 狼图腾1000字的读后感,谁知道, 谁知道这背景音乐是哪首英文歌?http://www.zznba.com/basketball/20121218/3699.html 1234的字母? 跪求此视频1分40秒时的背景音乐啊、哪位大神能帮帮啊...（英文歌曲） The girl is looking for her bag in her room.(对in her room进行提问) —— —— the girl ——for herThe girl is looking for her bag in her room.(对in her room进行提问)—— —— the girl ——for her bag? his sister has a tv in her room该为否定句 大象的生活习性有哪些 手机用英语怎么说 "这款手机有什么功能"用英语怎么说 为什么奥运歌曲是you and me而不是 you and 另外,you and I are 还是you and I am 对呢?糊涂的很那. 奥运歌曲《you and me》为什么不是“you and I”?这首歌里“你”和“我”应该是做主语啊 you and me me and you是什么歌 The girls are going to look at the zebra from Africa.改为否定句 Look at the picture.(改为否定句)（） （） at the picture.He is good at math.(改为同义句) He（）（）（）math. Look at the map.改为否定句 there are some girls in the room.改为一般疑问句并作否定回答 你打她手机吧 英语如何表达1 你打她手机吧 2 她忘了带手机,请你打她办公室电话吧 怎么用英文介绍一款手机的配置和性能?比如 SONY的 L36H 5.5英寸屏幕.1300万像素.具有防水的特点.1080P的高清屏幕这些用英语怎么说比较好? Tom said that he had begun the work______.A.for a month B.a month ago C.a month beforD.a month later为什么选D项?D项和C项有什么区别呢? He said that he__the work very soon.(finish) 这里的finish用什么时态 为什么 He said that he____(finish)his work already I don't doubt that Tom can finish the work in a hour.中的that可以省略吗? she said that she would finish her work the next day改为间接引语 mary said that she had done 进口产品上100%保证,用英文来讲 是100%guarantee 还是100%guaranteed?一个是名词,一个是形容词,那么刻在产品上的应该是用名词还是形容词的呢.因为这个产品在国外是刻的guaranteed,国内的是guarantee! 各位懂英语的朋友请帮忙做一下题目