twenty的音标是什么

等差数列{an}的各项均为整数,其公差d≠0,a5=6,若无穷数列a3,a5,a(n1)……a(nt)为等比数列,则n1的值为? 等差数列{an}的各项均为正数,公差≠0,a5=6,若a3,a5,am(m＞5)是公比为q（q＞0）的等比数列,则m的值 make,fresh,and,clean,trees,the,can,air.连词组句 英语翻译I’m ______ ______ _______ to England for study. the trees and plants can help ___ the air fresher and cleaner. A：making B：to make C:made选哪个?help后面不是跟原型吗?求解释 现在学英语主要学英国英语还是美国英语啊? Trees can make our air ____.(colore) 英国的初中生是怎么上英语课的? the trees can keep the air______1.clean 2.cleaner 3.cleanest 4.the cleanest Trees and piants can make the air ciean .和 They can keep the water from fiowing away.和 they canstop the wind from biowing up sand and earth.谁帮我翻一下这四句呢 《桃花源记》中描写百姓生活快乐的句子是 If there were no trees or plants of some kinds to hold back the soil with their roots soil怎么译 #[34] With a number of trees cut down,______ soil is washed away by rain.A.a great deal of B.the number of C.a number of D.a great many请帮忙翻译,并分析. trees stop rain from taking away soil . trees____rain ____ ____ away soil . 从英国到法国有哪些交通方式,分别需要多少时间 交通拥堵的危害有那些 我们要给交通堵塞预留时间 英文怎么说呀 教我几个字.顺便把这个字组2个词.一个耳 ＋ 一个骋减马是什么字?一个饭减反 ＋ 一个 贵是什么字?一个双人旁 ＋ 羊 是什么字?嚷 － 一个口是什么字?【 这里填动词 】身子 一【 】山脊 一【 数学那个loglogx(1-2x)求定义域 为什么要X>0 和 X不等于1, 英语翻译Think of life as a game in which you are playing with five balls in the air.You name them work,family,health,friends and spiritc and you keep all of them in the air.You will soon understand that work is a rubber ball.If you drop it,it wil Planting more flowers can make our country beautiful (划线提问Planting more flowers)要加速!The was a little girl over there.(划线提问a little girl) (注：要汉译) We plant more trees to make our earth more beautiful.to make our earth more beautiful.划线提问 How are we going to make our city cleaner and more beautiful? 形容事情的开头是什么词语? 品味词语：教师应该做什么 一道组词题：1.用“渲”组词.2.用“跤”组词.要组3个词,“渲染、摔跤、跌跤”不用再说了.我另外加分,看词语好不好,尽量是2个字的词. 同底幂数相除,底数---,指数---.即：a^m÷a^n=---(a≠0,m、n为正整数,m＞n) make shanghai more beautiful英语小作文初三的 How can we make Shanghai more beautiful? “Make the world more beautiful”这句有语法错误吗?怎么改?Everyone should try his best to protectthe environment to make the world more beautiful.这句话有错吗？ 有什么词语可以形容同学们从教室里跑出来同学们下课了,都跑出来玩耍,有没有这种词语呀,作文要用! 用“严”组词,填空.老师经常教育同学们,老师对学生要（）要求,每个学生要（）纪律,谁犯了错,他都会