围绕作业写一篇话题作文

正弦函数值域问题例如,sin（0.5x+0.25兀）在0到2兀的值域 正弦函数的值域是什么, 关於正弦函数的值域已知f(x)=2sin(x+π/6),当x∈[π/12,π/2],求f(x)的值域. 正弦函数值域一定是[-1,值域到底是指什么? I'm( )(happy)to hear the good newsMany people( )(like,love)skating in cold winter. Does your friend want lotuses or not 如何回答 I am truly happy to hear the news.这里为什么添tryly而不是true? I'm so ______ to hear the good news A happy B happiness C sad D sadness I am happy to hear the news 的意思今天的快谢谢 请问这是什么花,应该怎么培养? 怎样判断两圆的位置关系 两圆 x^2+y^2-2x=0与 x^2+y^2-4x=0 的位置关系.知道半径和圆心怎么知道他是内切？ （数学）求两圆位置关系已知两圆的方程为x^2+y^2+4x-5=0和x^2+y^2-12x-12y+23=0,那么这两圆的位置关系是_______________A.相交B.外切C.内切D.相离 一个最简分数,分孑、分母的和是40,分孑、分母都加上3,约分后是13分之10,求这个最简分数. 5分之2的分母与分子都家上相同数,的到的分值是21分之20问加上自然数是多少 the film is very interesting .you can_______ it this evening A.see B.seeing C.to see this is the —— film of this year选择This is the —— film of this yearAcool BgoodIt is hot in the day ,but quiet —— in the morning and evening.Acool Bgood翻译（一条横线一个词）炎热的夏天人们通常做什么?— — people 运用下面列出来的词语,写一则100字左右的一段话.1.沮丧、 臃肿、倜傥、踱来踱去2.伫立、 泯然、锲而不舍、迥乎不同.就这两个、 可以不到一百字、但可以接近就接近、 内容马马虎虎就OK了 英语翻译This is our notice.So you can do what you need to do here.原题是This is our ———.So you can do what you need to do here.A：substanceB：scheduleC：noticeD：noun但是不明白意思. what you need to do is find your own way to stud 突如其来造句 用上突如其来恍然大悟这两个词语造句 突如其来造句,111111111 位置关系是什么意思 用完美的什么不是什么而是什么造句 实际联系地址是什么意思 when they walk ()the desert they find nothing but some water为什么不能填cross? 我在用Windows Vista ,在更新时出现警告:you need to validate your copy of Microsoft Windows ,to get all updates from Windows Update,you must validate your copy of Microsoft Windows as genuine. we need your current photo and your info of the min.acceptable salary.怎么翻译? 英语翻译Everyone was puzzled,so they stepped nearer to take a look.They realized that one of the mice was blind and could not see anything,and the other was trying to allow the blind mouse to bite on his tail so that he could pull the blind one w You got to put the past behind you before you can move on.什么意思? Put the past behind you before you can move on!好像是电影里的台词,