Sinceclassesbeganihavenotmuchfreetime

this river is twice longer than that one据说外国人不理解比据说外国人不理解中国的比•大几倍·只有是几倍的说法.这条河是那条河的三倍到底怎么用比较级说.我看网上也很乱.有权威的吗? In one three-year period alone,he wrote music for nineteen shows.怎么翻译啊? 26厘米乘12厘米是什么尺寸的纸 12平米有多大 一项工程,甲队独做9天可以完成,乙队独做12天可以完成,甲,乙合作,每天完成这项工程的几分之几?甲乙合作,几天可以完成任务? Although there is not a lot of traffic,on average,one vehicle comes off the road every two weeks. Theer are three seasons in a year.中文意思 three-year-old triplet 的意思 Three year pain 还有esven year itch we have so many things for dinner的同义句 risks can only be insured against if they can be estimated这句话里的against怎么译,为什么要用? 英语翻译They had forsaken (抛弃) the familiar medium; they had trusted themselves to the mercies of those who had no reason to care for them; knowing their protector's indifference,they had lived for long in fear; and they were aware that they 积分sec t=? SEC^3的积分,如图,红框所标示的步骤应该是用了分部积分法,可是怎么看不懂呢? 求该分步积分的推导过程 求该步分步积分的推导过程 绿色蝈蝈的研讨与练习答案去户外静听虫鸣鸟啼,辨别这些声音,并用一段话形象地描 去户外静听虫鸣鸟啼,辨别这些声音,并用形象地描写出来.600字啊快 要来不及了 请帮忙判断以下关于物理说法的对错,并说说为什么.1.第一宇宙速度是卫星绕天体表面运行时的速度2.任何天体的第一宇宙速度的数值都是7.9km/s Planning so far ahead no sense—so many things will have changed by nso far ahead是定语,修饰planning吗? 关于电场中的等势面,下列说法正确的有 A,等势面不一定和电场垂直 B,沿电场线电势一定升高C,在同一等势面上两点间移动电荷,电场力做功为0 D,处于静电平衡状态的导体是等势体,表面是一个 我要短一点的记叙文,倒叙,顺叙,插叙都行 最好是描写父爱的.实在没有的话也没关系 .500 字以内的 篇数越多越好 sec立方求积分（要详细过程）我想知道这个积分是怎么算出来的?/> 去户外静听虫鸣鸟叫,辨别这些声音,并用一段话形象的描写出来.（用发言稿的形式) sec（x）的积分是多少?怎么求的?3Q y＝sec³x怎么积分? 比4吨少5分之1的是()吨 （ ）比1/5吨少1/4吨 1/5吨比（ ）吨少1/4 1/5吨比1/4吨少()%;1/4吨比1/5吨多()% 在地图上把海洋深度相等的个点连成线叫做? 去户外静听虫鸣鸟啼,辨别这些声音,并用一段话形象地描写出来300字以上