一周的收获

they look like each other. we can't tell d____between them 以“微笑”为话题的``以“微笑”为话题的的文章``帮忙提供几个漂亮的题目``随便告诉我写的思路吧`` it cannot tell other bees where the food is with its m____Many other animals use this kind of way.When a bee finds some food,it flies back to its home.It cannot tell other bees where the food is with its m_________,but it does a little dance in the a 以微笑为话题的那道, SO IT IS DIFFICULT TO TELL THEM FROM EACH OTHER. 为是其智弗若与?为的意思 给定一个前n项和,如何判断是否是等比数列.给一个如a（n+1）=3a（n）+2a1=2这一类的题目,如何求通项公式? 甲乙两车分别从AB两地同时出发,相对而行,4小时后,两车已相遇而过,并有相距75千米.已知甲乙两车每小时一共行全程的24分之7,求AB两地距离? 判断等比数列A.公比q>1的等比数列是递增数列B.两个数的等比中项一定有两个 关于判断等比数列在数列an中 a2除以a1=2 a3除以a2=2 为什么它不能确定是等比数列而an an+1除以an=q 就是等比数列啊 AB两地相距14千米,甲在A地,乙在B地,若同时相向出发,则2小时相遇；若甲向B地去追乙,同时同向出发时,甲14小时可以追上乙,求甲、乙两人的速度. AB两地相遇1200米,甲从A地,乙从B地同时出发相向而行,甲每分钟行50千米,乙每分钟行70千米,相遇后继续前进,到AB后立即返回,第一次相遇点与第二次相距多远? 繁星春水的内涵 you are welcome与it doesn't matter的区别 作文 怎么做不写错别字 用过去正在进行时造 （5句以上）摆脱啦!急用过去正在进行时造句 用过去正在进行时造宾语从句 write read close open live sing dance play look leam listen swim ride put work ring sweep sleep jump run walk的 正在进行时,过去式,第第三人称单数 如图,在平行四边形中,对角线AC,BD相较于点O,BD=根号2AB,得出三角形DCO相似三角形DBC相似三角形DBC. the man _____ _____ our teacher is takeing is my father.是用with whom还是 with which为什么不能用with which The man whom your father talked to amoment ago___be our new teacher.A.mustn't B.cannot C.needn't D.dare not 选哪个?为什么?意思是? 已知一维整形数组如下：3 3 2 5 5 5 1 1 1 5 -6 -6 -6 9 （1）求连续元素相等的个数,如2个3,1个2,4个5等（2）求上面个数的最大值,并指出对应的元素.C语言程序 以下对一维整型数组a的正确说明是.B）int n=10,a[n];C）int n;scanf(“%d”,&n);int a[n];D）#define SIZE 10 int a[SIZE];B C哪里错了? 数列1,1,2,3,5,8,13,21,.的前n项（1 下面一段话中有四个错别字,把他们找出来,然后改正　　这里依然保存着古朴的民居,粉墙黛瓦犹如一条条游龙川梭于老城,勾画出飘逸的弧线,让人心弛神往：没有高楼大厦,没有水泥钢筋,甜静 that girl is new in new in our class.do you know( )name 英语大课堂8B Unit6首字母填空答案A:I hear your school will organize a charity walk called Walk for Children,right?B:Yes,that's t_____.A:What's the a_____ of the event?B:The aim is to r_____ money for the charity called UNICEF.You can p____ 380电压和220电压有什么区别 int i,j,a[2][3]；按照数组a的元素在内存的排列顺序次序 已知集合M={a,a+d,a+2d},N={a,aq,aq^2}其中a不等于0,且M=N,求q和d的值 设集合M={a,a+d,a+2d},N={a,aq,aq的平方},其中a不等于0且M=N,求实数q的值? 投针实验中与平行线相交的概率的计算公式是P=21/πa,其中a表示平行线间的距离,l表示针的长度李明做了1000次投针试验,针与平行线相交了505次,李明所用的针长4cm,平行线间的距离为5cm,据此统