正态分布概率密度公式

翻译 你能告诉我谁知道答案吗 英语翻译(想字也翻出) 高一人教版数学必修五难么请客观评价一下,必修五难么 书上的！习题1.5的；第一章的复习参考题；习题3.1；习题3.2；第三章的复习参考题 The program was so exciting that the childThe program was so exciting that the children kept their eyes____on the screenA.to fix B.to be fix C.fixed D.fixing这题选什么为什么? The program was so exciting that the children kept their eyes____on the screenA.to fix B.to be fix C.fixed D.fixing为什么选 c 聚集目光不应该是主动吗 must 反意疑问句的用法 “must”在反意疑问句中的用法有哪些啊?如题! 洛必达法则中为何要规定“在a的去心邻域”,改为“在a的邻域”内是否可以?谢谢大家了! 《凤》英语单词怎么写fen 《凤》的英语单词怎么写 甲乙之和是50如果甲减去它的四分之一乙数去掉1后两数正好相等甲乙两数各是多少,注意,我要为什么 去心邻域的半径是原邻域的一半吗半径是指长度吗 My mother fell ill ( ) a fever last week.A.atB.overC.withD.on Hen was so tired that he could ( ) keep his eyes open.A、ever B、never C、hardly D、almostHen was so tired that he could ( ) keep his eyes open.A、ever B、never C、hardly D、almost Jhon was so sleepy that he could hardly keep his eyes ＿.A.openB.to be openC.to openD.opening为什么选A? 英语17.John was so sleepy that he could hardly keep his eyes _______.17.John was so sleepy that he could hardly keep his eyes _______.a.open b.to be opened c.to open d.opening 为什么 甲乙两数相等,甲加50,乙减34后,甲数是乙数的4倍.问原来甲乙两数是多少 甲乙两数相等,甲加50,乙数减34后,甲数是乙数的4倍,问原来甲乙两数是多少? 暑假里上初升高衔接班有用嘛?最好是上过的人来回答.是否初中数学不是很好的人到了高中好好学成绩会变好?另外高中的语文和英语两科和初中比起来会有一个由易到难的很大的跨越嘛?高中 2011年暑假初升高衔接班成都,新思维、名师堂、望子成龙…什么时候开课? 怎样上好初升高衔接班的课呢? 一根长48cm的铁丝围成一个长方形,长与宽的比是七比五,这个长方行的面积是多少? 这个互通式立交桥怎样左转弯我从自南向北这个方向行驶 怎样转弯才能到廊坊呢? 什么是分离式立交桥,如何定义? 互通式立交是不是就是立交桥? 什么叫互通式立交桥 not until 翻译 英语翻译（直到...才）的翻译是not until吗 用not until 开头“直到回来才知道” 怎么翻译? 英语翻译Not untl I waved to him again and again did he see me. 选择合适的单词并用适当的形式填空read open talk look drinkeat listen fly play see1.He likes ( ) eat.2.Let me ( )the door.3.Jim often （ ）a book at night.4.They‘re( )the kite.5.( )to the teacher,please.每空一词快...