失笑是什么意思

1.My brother often ( ) his homework after supper,but yesterday eveing he （ ） ship.A.does;make B.does;made C.makes;did D.made;did2.The students usually hate ( ) questions.But the teaches ( ) them to do so.A.asks;like B.asking;like C.to ask;hate D. 已知两个正数a,b的等差中项为4,则a,b的等比中项的最大值为4.我得16啊! though he started late.Mr Guo played the piano as well as ,if ______,miss Liu.A not better than B not better C no better thanD no better怎么翻译?选什么?为什么选?这里那么多逗号是插入语?还是从句还是什么? 英语选择题一道（说出原因）悬赏50追加得分Living in the central Australian desert has its problems, ____ obtaining water is not the least.A. of which B. for what C. as D. whose为什么答案是A?Living in the central Australian dese x+4/0.2-x-3/0.5=-16 y=[(0.1+0.1y)/0.3]+1 (x-3)/0.5-(x+4)/0.2=16表示是家庭作业！ 几道英语选择题,高手帮忙!1.____year were you born?A.When B.Where C.How D.What2Let me____it for you.A.to do B.do C.doing D.does3.Look at______picture.A.oneB.the one C.first D.the first4.Chidren in the USA like K Day_____.K is for kites.March 1、My English teacher's humor was____make every studentburst into laughter.A so as to B such as to C such that D so that2、____is the kindness of nurse that the patient can never be____to her.A So；too thankful B Such;so thankfulC So;that thankful 1：i seem _my homework at hometoday,miss yin.The third time this week!I wonder if you got your homework- A：to leave；to do B：to have left；done C：to leave； done D：to have left；to do2：Megan is very easily distracted by other’s behav 1、Look!There（ ） playing with the tourist on Yinhe Square.A are a number of beer B、are a number of deersC、is a number of deer D、 is a number of deers2、I will never forgot the years（ ）we studied in the same class.A、when B、that C 请高手帮忙做20道英语选择题,全对着追加10分,在线等,谢谢!一、单项选择题（共20道小题,共100.0分）1、I have taken many photos. I'm going to get the film___________.a being developed b developed c developing d 等比数列1,a,a∧2,a∧3...的前n项和sn＝ 如何提高英语选择题成绩 如果(a+1)的二次方乘以x的二次方乘以y的n-1次方是关于x,y的五次单项式,求n,a应满足的条件.快 英语选择题怎样提高 怎样快速提高英语成绩?介绍一下方法, 通常15分的选择题我只能拿到9分左右（1分1题）,大部分是语法题有错,还有一些短语题,我希望能通过自己的努力将选择题拿到满分15分,望能得到各位大虾的指点, 列算式奥简便计算249+87+151+13354-123-77用竖式计算并验算7.1-5.789.48+3.75简便计算25.4+6.3+3.7 分式方程应用题如何分析 初二数学分式方程应用题,求解析.甲乙两地相距135km,有大小两辆汽车从甲地开往乙地,大汽车比小汽车早出发5h,小汽车比大汽车晚到30min.已知大小汽车速度的比是2:5,求两汽车的速度.（列分式 在一个没有余数的除法里,被除数,除数,商的积是100,被除数是多少 (x-4)/0.12-2.5=(x-3)/0.05 在没有余数的除法算式中,被除数是商的60倍,己知被除数和除数的积是300.商是多少? 若单项式4乘以x的m次方乘以y的3次方与负的x的平方乘以y的n-1次方的和是单项式,则m等于（）,n等于（） 如果(m+1)的2次平方乘以x的3次方乘以y的n-1次方是关于x.y的六次单项式,则m.n满足什么条件 3/1×5/3×7/5×9/7×11/9×……×97/95×99/97 光明村今年每百户拥有彩电121台,比去年增加66台,今年每百户拥有的彩电量比去年增长了百分之几?求可爱的小伙伴们指点,非常感谢! 光明村今年每百户拥有彩电121台,比去年增加66台,去年每百户拥有彩电多少台?今年比去年增长了百分之几 光明村今年每百户拥有彩电121台,比去年增加66台,去年每百户拥有彩电多少台?几年比去年增长了百分之几?可是有人又说是84百分数? 光明村今年平均每百户有彩电121台,比去年增加66台.去年每百户拥有液晶电视多少台?今年比去年增长了百分之几?） 光明村今年每百户拥有彩电121台,比去年增加66台,今年每百户拥有的彩电量比去年增加百分之几? 当a 时,分式（a的平方+a）／a的平方+1的值为0当a 分式a的平方+a／a的平方-1