衣补旁加者

求41-45题答案, untouchable 小明通常上学时走上坡路,途中平均速度为m千米/时,放学回家时,沿原路返回,通常的速度为n千米/时,则小明上学和放学路上的平均速度为多少?（列分式方程） 50财富值,生物41～45题,答对必采纳... 甲乙两人从A地到B地,甲需要2小时,乙需要3小时,甲乙速度的最简比是( ) （2a+3b）（2a-b） 重农抑商思想转变的原因?急 与重农抑商的政策相比、明清时人们思想观念发生了什么变化?原因? 汉普森英文课程顾问工资怎么样,有谁做过没, ?45×?＝36×? 36-45 ():45=3:36 丹麦语好怎么写 已知数列{an}满足a1=2,sn=4a的n-1 +2（n=2,3,4,.） （1）证明数列{a的n-1 - 2a的n}成等比数列 丹麦语的 我爱你 怎么写阿? the key to ordering a good meal in a restaurant is understanding what restaurants are for请翻译这个句子 The tree has grown against a warm wall on sheltered side of the house.这句话中的on是什么意思怎样翻译 从人群中任意抽取2个人,生肖相同的概率是多少. The tree has grown against a warm wall on sheltered side of the house.这句话中的on是什么意思翻译“ 概率的问题,全班24个人,12个星座全部有的概率是多少?最好给个公式! against the building 还是opposite the building mary is in c后面填什么 15个人凑齐12星座的概率?顶 句型转换 .I think Sally is _outgoing_.划线部分(outgoing)提问 ____ do you think Sally ____ ____ 急啊】做得糊涂了~2个超级简单的句型转换.今天作业太多了.做得有点糊涂.1.It will be sunny tomorrow 『对sunny 提问』2.There is nothing else in the fridge.改同义句. 2个初二英语句型转换,I think it's impossible for him to finish it in ten minutes改为反意疑问句I think it's impossible for him to finish it in ten minutes,______ _______?It's fun to play with them 改为感叹句________ _______ it is t 设p:实数x满足x²+2ax-3a²＜0,q:实数x²+2x-8＜0,且p是q的必要不充分条件,求a的...设p:实数x满足x²+2ax-3a²＜0,q:实数x²+2x-8＜0,且p是q的必要不充分条件,求a的取值范围 设p设p:x²-2ax+a²-10,若p是q的必要不充分条件,则实数a的取值范围 一只猫最多可以活几年?谢谢了,大神帮忙啊 on（时间介词）的用法 几个简单的句型转换1.you seemed very ill yesterday._____________that you _________________very ill yesterday.2.we won't go untill we get back the basket.we will______________we get back the basket.3.句子翻译：我叔叔一回来我就把 1.The girl in red is my sister.(in red 划线,对划线部分提问)________ _______is you sister 2.Those are English films.(改为单数句子)_________ _________English film. 简单的句型转换He does his homework for two hours every day.(同义句)It_____ him two hours _____ _____ his homework every day.