多少的英语

欧非亚文明各国的地理环境、经济和政治特点还有其共通点 9 8 7 1 加减乘除怎样才能得1 每个数只能用一次 2分之1—(4分之3-8分之3）脱式计算 who's the president of the United States of America?please write his name in english or chinese一般要写几个?例举几个 A knock at the door( ）him.a .interrupted b.was interrupted c.interrupting d.was interrupting选哪个,为什么 A knock at the door __him .A,interrupted B was interrupted C interrupting D was interruping Per your request,a membership application has been created for you.You may download a copy of your personal application using your ID# and birthdate When your completed application is returned and approved,you will receive an official approval letter Your Campaign Response request has been queued 直线系方程?圆系方程?共焦点的椭圆系,共渐近线的双曲线系?曲线系方程你知道吗?直线系方程?圆系方程?共焦点的椭圆系,共渐近线的双曲线系? 一个焦点坐标(3,0) 过点A(-5,0) 求椭圆方程一个焦点坐标(3,0) 过点A(-5,0) 求椭圆方程 knock at the door造句 thank you ( ) your e-mail. We will respond to your request once it has been reviewed and any required investigation completed麻烦帮我翻成中文好吗? 西夏历史 辽 北宋 西夏3个国家并建立历史上哪个时期相似 辽和西夏仿效中原王朝产生了怎样的历史影响? 求西夏历史简介 Your account has been created.However,this forum requires account activation by the administrator.An e-mail has been sent to them and you will be informed when your account has been activated已经注册了``出现这个是什么意思```谁能告诉 take a test Your account has been de-activated不能使用了吗？ take a Your account has been cancelled 刚注册的汤不热就出现这个Your account has been suspended.RT,刚注册,用邮件点进去算是激活吧.显示成功了然后goto汤不热然后再次输入账号密码就出现了这行字.Your account has been suspended.有没有人知 your account has alrcady been verified 【1】there are two students take part in the Egilish speech contest each class 这句话有没有语法错误.【中文:每个班级两名同学参加英语演讲比赛】【2】我们不常见面,用英语怎么说?【用seldom这个词】 计算[a^1/2+a^1/2]^2 计算：a+1/a-1+a-2/1-a 请问喀麦隆说的是哪国的语言? 元昊建立西夏 喀麦隆是哪个洲的 元昊建立的西夏是怎样灭亡的?被谁灭亡的? 元昊建立西夏时,取国号是“夏”还是“西夏”?