西周婚姻禁止离异的条件是A.五礼 B.三不去 C.七出 D.六礼 发布时间:2018-01-12 10:01 │ 来源:www.tikuol.com 题型:单项选择题 问题: 西周婚姻禁止离异的条件是A.五礼B.三不去C.七出D.六礼
题型:单项选择题 补全对话。thriller, boring, have, sound, let's, sorry, really, action movie, do, thank youDonna: Hi, Emma! __1__ go to a movie. Emma: Hmm. I __2__ no idea (主意)Donna: Well, It's a __3__ Crouching Tiger and Hidden Dragon. Emma: Oh, I __4__ don't like action movies. Anyway (不管怎样) __5__ .Donna: OK. Where's Jim? __6__ he want to go to a movie?Emma: __7__, I don't know. Look, he is there!Donna: Hey, Jim? Do you want to go to a movie? It's Crouching Tiger and Hidden Dragon!Jim: Movie? That __8__ great! Is it a comedy? I like comedies and __9__ .Donna: No, it's an action movie. Jim: Oh, I think it is __10__ .Let's go to see a comedy. 查看答案
题型:单项选择题 有关物质的转化关系如图所示,其中A为常见的家用燃料,在通常情况下,X、Y为两种气态单质,Z为固态单质,B、C、D为三种常温下状态各不相同的氧化物(注意:浅绿色溶液为含Fe2+的溶液.个别反应的条件未注明).(1)写出有关物质的化学式:A______B______Y______(2)写出M的一种用途______;(3)写出反应B→Y的化学方程式______.(4)写出反应D→Z的化学方程式______. 查看答案
题型:单项选择题 设λ1,λ2是n阶矩阵A的特征值,α2,α2分别是A的对应于λ1,λ2的特征向量,则A.当λ1=λ2时,α1与α2必成比例.B.当λ1=λ2时,α1与α2必不成比例.C.当λ1≠λ2时,α1与α2必成比例.D.当λ1≠λ2时,α1与α2必不成比例. 查看答案