如图所示，求证五边形的内角和等于540度

sina-cosa的取值范围怎么算.0《A《派 i( )to make something,or become better hand-in-hand till death do us part.请问这句话翻译成汉语是什么? 带Till death do us part的结婚诗词完整版 my visit here is all about ( )(make friend)用所给动词的适当形式填空 c.at.madrid是什么意思 Amy said her visit here was all about _ friend A.Amy said her visit here was all about _ friendA.makeB.makesC.makingD.made I want you can become much better and smarter I love you till death do us part It’s Sherlock Holmes – the greatest detective (侦探) of all time.中文意思 学校准备花1000元购买桌椅,单人桌每张45元,双人桌每张56元,单人椅每张20元,这笔钱能买多少套这样的桌按照搭配这笔钱能买多少套这样的桌椅? 结婚誓词“Till death do us part”中,为什么用“do”而不用“does”呢? Holmes is famous ____a detective.A.from B.of C.for D.as 答案是B,但我查了资料都说是C,是不是答案问题啊,有没有be famous of的说法啊,希望了解的解释一下.谢谢 i_______:to make something better；to become better.根据解释填以s开头的单词.填什么呢?苦思冥想好难啊, You can find information about almost anything in the world on these pages.For example,you can use the Internet instead of a library to find the information for your homework.You can also find information about your favourite sport or film star,talk to go on doing sth.so as to become better at it1.p________to go on doing sth.so as to become better at it.2.e________every person.本题是初一英语（五四分制）阅读题中的一小题，他说的任务是根据英文释义及首字母提示 my classmates s father是名词复数吗 已知一个平行四边形的对角线长分别是x、y,一条边长是12,则x、y的值可能是（ ）A.8、12 B.10、14 C.18、20 D.10、34 Thispowerful computer could solve problems .A.with lightning B.in flash C.in a flash D.in a lightning __gathering and storing information ,the computer can also solve compiicated problemsA not only B besides 若0＜a＜β＜π/2,试比较β-sinβ与a-sina的大小 试0＜a＜β＜π/2,试比较β－sinβ与a－sina的大小 I am watching at my classmates这句话哪里错了 电视征婚弊大于利辩论词 英语翻译就是这篇Another major work by Lu Xun is Wild Grass or Ye Cao a collection of prose poems.These were written in 1924 and 1926,roughly the same time period the stories of Wandering were being written.Some might consider some of the poem 英语翻译Alfred Nobel---a man of contrasts 在三角形ABC中,sinA(sinB+cosB)-sinC=0,sinB+2cosC=0,求角A,B,C的大小如题 英语翻译What is e-commerceE-commerce (electronic commerce or EC) is the buying and selling of goods and services on the Internet,especially the World Wide Web.In practice,this term and a newer term,e-business,are often used interchangably.For onl Social support...Social support consists of the exchange of resources among people based on their interpersonal ties. 关于social的句子快 能否用social的形容词的意思造几个句子? 谁能帮忙翻译“we've gone social”这句话的正确的意思,