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一辆客车从甲地出发去乙地,途中3/5是平路,然后上山又下山,最终到达乙地.在乙地停留三十分钟返回,回到甲地时,发现客车上山的路程共行20千米,甲乙两地相距多少千米 客车从甲地出发去乙地,货车从乙地出发去甲地.两车在途中相遇,相遇时客车上与货车所行路程比是5:4相遇后两车继续前进,货车每小时比原来多行27千米,客车速度保持不变.结果两车同时到达 一辆汽车从甲地开往乙地,行到途中某地时,以行路程与未行路程的比是1比3,如果再行130km,则以行路程与未行路程的比是5比2,AB两城相距多少千米?要算式 一辆客车从甲地开往乙地,行到途中某站时运行的路程与剩下路程的比是4：5,如果客车继续行驶42km后,这时已行的路程与剩下路程的比为1：2,甲乙两地相距多少千米 用定积分定义区间2到3 求 x+2dx 定积分定义里连续的区间指什么是定义域的连续.还是图像的连续 1哲学,2佛老（佛教和老子）,3孔孟,这三类有哪些好书啊能够让人豁然开朗的书 十六进制1A+1A等于多少 一辆车从甲地开往乙地,9小时行了全程的七分之三,比剩下的路程少150千米.平均每小时行多远? 一辆汽车从甲地开往乙地,9小时行驶了全程的3/7,比剩下的路程少了150千米.平均每小时行驶多远. 一辆汽车从甲地开往乙地,在离中点16千米时,已行路程与未行路程的比是2：3,甲乙两地的距离是多少千米? The teacher and the students talk ____________ English ____________ class.A.in; in the B.in; in C.with; in the 求下列英语题目的答案及其语法1、The moment I got home ,I found I ___ my jacket on the playground.A had left B left C have left D was leaving 2、 Not until the motorbike looked almost new ____ repairing and cleaning it.A he stopped B di 英译中:We will go for picnic tomorrow if the weather is fine. 英语翻译古文翻译 文言文《朱元璋画像》的道理! 文言文朱元璋画像 成现代文 if the weather is fine tomorrow改成独立主格if the weather is fine tomorrow改成独立主格：the weather being fine tomorrow还是the weather to be fine tomorrow?为什么？ 关于x的方程x+2(m+3)x+2m+14=0有两实根,并且一个根小于1,另一个根大于3,求m的取值范围.今晚就要,過時不候. 用所给词语的适当形式填空：please tell mother that I___ ___（do）do my homework now.如题, My mother often makes me do my homework after supper(改为被动语态)老师讲的是I often made to do my homework after suooer.但是为什么是made to do my homework不是make do sth. 方程x^2+(m^2-1)x+(m-2)=0的一个根比1大 另一个根比-1小 则m的取值范围是? 有谁知道描写春天的三首诗, my mother tell me to do homework 的中文意思和被动语态 有谁知道关于女人的诗词 Don't tell me how to do my homework .You-----(sounded\looked) like my mother. My parents often tell me to do my homework by_____(my)为什么 1、We haven't settled the question of whether it is necessary for him to study abroad.为什么这句是同位语从句而不是宾语从句,不是of后面跟的是宾语吗?2、(1)People in part of North China sleep on ______ they call "kang".(2)Th i was doing my homework while my mother (was cooking)为什么不填cooked i was doing my homework while my mother was cooking不是一个句子不能有两个动词吗?为什么两个was会同时出现? while my mother was cooking ,i ___ TV.A.was watching B.am watching C.watch D.watched While my mother was cooking,I was sleeping 这句话中While my mother was cooking有没有主语呢我的意思是如果不看后面那句 只看前面 while这个从句引导的就是个时间状语?所以前半句是没有主语的