雄姿英发

那个内接正n边形面积公式怎么推出来的 一个正n边形的面积怎样算最简便,有没有表达式,若有,怎样证明表达式为什么0.5L/R=sin(π/N）， 求正六边形的面积公式!求正N边形的面积公式. 英语翻译 Don't take picture here,please.的最佳答语是什么 同义句转换 Don't take pictures here.------------------------here. Don't take photos here!(同义句) Don't forget ________your photo here tomorrow.A.take B.to take C.bring D.to bring 正八边形的面积怎么算?公式是什么?已知正八边形的边长是64厘米.每条边是8厘米 八边形的面积公式 英语翻译桔子洲头-- 桔子洲,又称水陆洲,为长沙城区湘江水域中的小岛,南北长5公里,东西宽约100米,宛如彩带,风貌独特,是古潇湘八景之“江天暮雪”所在地,被誉为“中国第一洲”.远在唐代, 新年新鲜事作文 300字左右 请尽快,今晚要 作文-------里的新鲜事以-----里的新鲜事为题,写一篇记叙文要求:1.题目重点在"新鲜",要写出事情不一般化的地方;2.事情的来龙去脉要写清楚. 里的新鲜事作文快点啊,不要复制 Would you mind my smoking here （改同义句）Would you mind my smoking here （改同义句）Would you mind ____ ______ ____ here? Would you mind sitting here.为什么sitting Would you mind my sitting here?Would you mind ____ ____ ____here?(同义句转换）大神们帮帮忙 Would you mind sitting here.上面这个句子和Do you mind opening the door.这个句子为什么一个用would提问一个用do提问 www.@sina.com在口语中是怎样发音的?主要是“@”和“·”这两个怎样发音?请帮我标出音标. www.sina.com. is he/does he/isn't he/doesn't he这些疑问语气的用法 Does Jane has a t（）,doctor?no,he doesn't还有一个You has a bad cold.So you must k() yourself warm He doesn't read books,does he?答语.yes,he does.\no,he doesn't.答的句子怎麼翻译? ----Why does he look______?----He doesn't feel____today.A.sad,well B.sadly,wel C.sad,good D.sadly,good 初一英语作文"School events in our school" 急 新鲜事作文怎么写 He comes to school our headmaster A.with B.to C.by D.of 我家里的新鲜事作文别抄百度上的 英语翻译“我的朋友和同学在我家卡了一个party ln our school,school _________at 7:30.A.is B.start C.starts D.doesA.is B.start C.starts D.does ——Would you mind my sitting here?——_____.It's for my sister.A.Not at all B.Of course C.Certainly not D.You'd better not【答案选D,老师解释是：——你介意我坐这吗?——你最好不要（坐这）.这是给我sister的座位 would you mind my sitting here would you mind ( ) ( ) ( )here 改为同一句