协方差矩阵的计算公式

已知一个锐角三角形,最大一个角的取值范围 英语单选15道1.---What are you going to do this weekend?---I _____ yet.A.haven't decided B.won't decideC.have decided D.didn't decide2.---Tom,it's getting cold._____ take a jacket with you?---All right.Daddy.A.Why not B.What aboutC.Would you like 急求15道英语单选答案1、The government is adopting strict ______ to check the quality of vehicles to ______ these cars are not contributing to pollution.（1分） A、measures,surely B、manners,surely C、measures,ensure D、manners,ensure 麻烦翻译以下英语最新配方,提取自海藻营养因子,有效止痒及滋润肌肤,沐浴后肌肤洁净舒畅,清香怡人. 15道英语单选~着急用,高手回答下,谢谢了21. I don’t usually like staying at hotels, but last summer we spent a few days at ____ very nice hotel by ______ sea. A. a; 不填 B. a; the C. 不填; the D. the, 不填22. The p 英语翻译给我5年时间打造一个高峰起点,让我用十年时间创造奇迹,允我用余十五年放弃生活! 英语翻译Christian Dior MAQUILLAGE HAUTE COULEUR I could awke justhear you breathing.Watch you smile you are sleeping.While you’re far away anddreaming.I could spend my life in this sweet surrender.I could stay lost inthis moment,forever.Every m QA、IQ、EQ、PQ分别是什么意思 如何开通手机银行(中国建设银行) 15道英语单选 21.I don’t usually like staying at hotels,but last summer we spent a few days at ____ very nice hotel by ______ sea.BA.a; 不填 B.a; the C.不填; the D.the,不填22.The purpose of the research had a more important meaning for th 在锐角三角形ABC中 已知角C>角A>角B 且最大角比最小角大24度 则角A的取值范围是 锐角三角形中,最大角a的取值范围是多少?（A） 0°＜a＜90° （B） 60°＜a＜180° （C） 60°＜a＜90° （D） 60°≤a＜90° 锐角三角形中,最大角为X,则X的取值范围 锐角三角形中,最大角α的取值范围是____?快啊,我要⊙﹏⊙▄【┻═┳一 IQ,PQ,EQ各指什么? 英语翻译①只要用布涂上本产品在金属表面擦拭,就能去锈,并且在擦亮的同时形成保护膜.②使用后不要立即用清洁剂清洗金属表面,这样会破坏防锈保护层,不能达到防锈的最佳效果.③本产品 麻烦把中文翻译英语. 麻烦各位英语高手给翻译一下,急用!非常之感激!摘要：随着知识经济的到来,无形资产在企业资产中所占的比例越来越大,在有些企业中无形资产已经成为了资产的主要组成部分,比如微软公司. 选择：（ ）It often_______in that city in winter.A.rain B.rains C.rainy D.raining（ ）There is a heavy_______outside.A.rain B.rains C.rainy D.raining（ ）Sometimes it rains_______in Xi'an in summer.A.heavy B.heavily C.strong D.strongly根据 用适当的介词填空：Then we have a job______you______a waiter.Do you want to be______the school play?My brother works_______a very great magazine.Reporters talk______different people every day.I want to be a reporter because I like to work____ 英语课文Jimmy is five old and he is already very good at painting.He paints many beautiful and interesting pictures,and people pay lots of money for them.Theysay,"This boy is going to be famous（著名的）when he is a little older,and then we 都很简单的,帮我看一下〓〓carefully 它的形容词 ______him 它的反身代词_____№2 什么是反身代词? 有一个三角形,它的一个角是锐角,它可能是()三角形 有一个锐角的三角形是什么三角形 1.Ann ia aways the one ( ) in her class.(能否说一下为什么这么选)A.to come school B.come to schoolC.to come to school D.comes to 2.一直往前走,然后在第二个路口向右拐.(翻译成英文) 1.凯蒂喜欢唱歌.你能听见她正在隔壁唱歌吗?Kitty likes singing.Can you( )next door?2.I don't know what kind of pet I should get.(同义句改写)I don't know ( ).还有这道题的原句为什么是“...of pet I should get”而不是 一个三角形最小的内角是45度 按角分这是一个(A钝角 B直角 C锐角 )三角形三个角互不相等 有一些关于虚拟语气的英语题!在线回答!用百度Hi! 1.__be sent to work there?a.Who do you suggest b.Who do you suggest that shouldc.Do you suggest who should D.Do you suggest whom should,为什么不选B?2.If I had worn my overcoat,I __cold.A,won't have caught B.won't catchC.couldn't have caught D.wo (英语)关于虚拟语气的题.My wife dosen't know how much money I spent in buying lottery.If she ever found out,I'm sue ____.A.she'd never forgive me B.she never forgives meC.she will never forgive meD.she does never forgive meA 我选择的C为 用反证法证明在一个三角形中至少有两个锐角 1.The teacher agreed to the suggestion that the students ___ two weeks to prepare for the exam.A.give B.should give C.be given D.would be given 2.I was busy yesterday,otherwise I ___ your birthday party.A.attended B.had attended C.would attend D.woul