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甲、乙两人轮流投一枚均匀硬币,甲先投,谁先得到正面则谁获胜.求（1）投币不超过4次即决定胜负的概率（2）在第4次时决定胜负的概率（3）甲获胜的概率（4）乙获胜的概率. 托福写作怎样自然引入例子 托福写作没写例子最低会多少啊?刚考过托福,最后独立写作忘记写具体到个人的例子了.这样大概能得多少分呀? 我想请问各位获得高分托福写作中例子的具体论述是怎么样的,如何算是specific 1368年初,( )在南京称帝,建立明朝.1421年,( )迁都北京,加强中央对北方的控制 谁知道关于友谊的作文吗?急! 关于同学友谊作文!急1.字数在400左右!2.选材要新! 有一枚质地均匀的硬币,甲、乙两人先后抛掷一次,则对它们出现“正面”的概率判断正确的是（ ）.A．甲大于乙 B．甲小于乙 C．甲等于乙 D．不能确定 请文字专家帮忙看看这个是什么字,是契丹、女真还是蒙古文? 文言文题 在《杨烈妇传》中,有一句“重赏以令死士,其必济”其中“济”字的翻译应为“成功”,而如果我们用普遍的代入法思考,似乎也可翻译成“渡过难关”,但这是不对的!对此,老师要求 《杨烈妇传》中“重赏以令死士”的“令”是什么意思? 下面关于have的用法的4个句子,哪些正确,为什么?People have different ways of spending their time.People have different ways to spend therr time.People have different ways spending their time.People have different ways spend their time. 在flash中,on属性是什么,release属性是什么? FLASH on(release)动画已经做好 按钮区 鼠标划上 3个球往不同方向离散鼠标划出 3个球回归脚本如下on(rollover) {mc.gotoAndPlay(N);}on(rollOut) {mc.gotoAndStop(N);}1.我想在3个球停下后 用on(release)来停下动画 为什么我的flash5.5里总说有语法错误 AS3.0 on (release) { gotoAndplay(1); } 总说这有语法错误 甲乙两人各自独立地投掷一枚均匀硬币n次,试求：两人掷出的正面次数相等的概率. 在下面哪几句话中可用have got来代替have?1.He had adrink before dinner.2.Mrs.Sullivan has a lot of money.3.He had to leave early.4.We have had a long conversation.5.My mother has a hesdache.6.They had a good time at the party.7.This sock h flash AS3 代码结构 as2转as3如何快速适应AS3 在下面那几句话中可用have got来代替must?1.He had a drink before dinner 2.Mrs.Sullivan has a lot of money.3.He had to leave early.4.We have had a long conversation.5.My mother has a headache.6.They had a good time at the party.7.This sock 哪些句子可以用have got代替have?He had to leace eraly.书上说可以换,不懂.have got不是有的意思,have to 不是不得不的意思,这能换?We have had a long conversation.这话的意思什么我们那时正在进行一个很长的 下面两句话可以用have got来代替have吗?(1)He had to leave early.(2)I have a bath every day. 初一英语(改写一个句子)He is talking on the phone.(该为否定句） I decided that the best way to do this was______an air hostess为什么空格里面填 to be而不是being? 英语翻译Graham didn’t spend his inheritance wisely.Wisely,Graham didn’t spend his inheritance. And i thought that the best way to do this was to become a flight attendant.求分析And i thought that the best way to do this was to become a flight attendant. 求分析一下句子结构,还有为什么要用TO BECOME 有甲乙两人,每人扔2枚均匀硬币,求两人所扔硬币均未出现正面的概率.复制的别回答!有甲乙两人,每人扔2枚均匀硬币,求两人所扔硬币均未出现正面的概率.1/16复制的不要! 早市、瓦市各兴起于哪个朝代? 有哪些形容面对厄运不退缩的谚语或歇后语 描写青山的成语 青山起（ ）成语要全部的, 成语青山起（）帮我吧 "青山"可以用什么成语表示?记住,是成语!11