二项分布可加性证明

谁能帮我写一篇作文,用英语,我的国庆假期. 关于春节的作文还有它的读后感都要400子 only by practising a few hours every day 空格 inprove your English. could you; will you 选 哪个? It is only by practising English for several hours every day _________ be able to use it freely.A.will you B.may you C.that you will D.when you must 我看到单词不知道怎么读 怎么发音 【语文】请问我如何判断记叙文中的一句话 是否有推动故事情节发展的作用? 从方框中选择正确的词,并用其适当形式填空 (learn ,understand ,speak ,wide ,从方框中选择正确的词,并用其适当形式填空（learn ,understand ,speak ,wide ,make）1.English is the most （）used language in the world2.Sp 象牙塔是什么意思,出自哪啊? “天地不仁,以万物为刍狗.情缘如薄水,倚枪笑红尘”谁能告诉我这句话的意思和出处你只说一句的意思 那另外一句了?那就麻烦你也帮我解释一下另外一句的意思和出处好吗? “把酒倚剑尽知己,狂歌醉舞笑红尘”出自哪里? 为什么The children go to school.中go不加s.children是复数还是单数 nowhere is the decline of cultural diversity more manifest than with the youngsters. 怎么编语文童话故事呢? 跪求一篇300字的窗边的小豆豆读后感,最好是原创【可以修改别人的文章】,今天结束 I waited for him ______twenty minutes.填介词,说明理由. I waited for Mrs Brown for twenty minutes【用现在完成进行时态改写句子】 I [ ] [ ][ ]for Mrs BrownI waited for Mrs Brown for twenty minutes【用现在完成进行时态改写句子 I have been waiting for Mrs Brown【 】twenty minutes Is that you a tennis racket mend、fix、repair、restore的区别 "笑红尘"英文如何翻译? 国家重视保护非物质文化遗产有何重要意义 “我喝醉了” 英语怎么说? 喝醉 的英语怎么说 他喝醉了用英语怎么说 Those people are waiting for the bus?改为一般疑问句.并作否定回答 The king was angry“you can draw a good horse in five minutes yet you kept me waiting for a yearWh转变为the king___angry,"you are___to deaw a good horse in five minutes,but you____me wait for a year.Why "被酒莫惊春睡重 "后面那个“重”字怎么读, You（ ）have kept your word.I wonderYou（ ）have kept your word.I wonder why you changed your mind.A.must B.should C.need D.would 英语语法分析.请问例句中should not have been there,是什么成分there were something on that runway that should not have been there. Maybe your coat is on the desk (同义句） Your coat （ ） （ ） on the desk. 英语必修四unit3课后习题答案2012年人教版P21页到22 英语必修4课后习题请填空,要能翻译更好! he looks rich ._______,he IS VERY POOR.A.in the fact B.in factC.at the fact D.af fact