三年级数学教案人教版

我是天文爱好者,刚刚入门,请问是选双筒望远镜好还是选单筒望远镜好?麻烦说几个牌子和型号! I will have a lot of money in the future.Tom and me合并为一句 If the question _____ incorrectly,____ question will be given to youA.is answered;other B.answers;other C.is answered;another D.answers;another 我知道C,为什么 想买个望远镜,主要用于天文摄影,3000预算.求推荐~~~想买个望远镜,主要用于天文摄影,拍拍星云本来看中了天狼画师102ds,但是有点超预算稍稍.后来又听说这个性价比不好.长戈二号呢?迷惑了,求 Pls note the price that was given to you was based on our keeping… I will send picture to you tom for your ref//此句是什麼意思.请翻译. 天文观测入门级用什么望远镜好点.要多大口径的?希望能看到系内行星和一些小行星... 单词编一个英语故事slang,relish,account,punch,transfer 用这几个词语编一个英语小故事~take a risk/risksrush up toout of breathcontinue to do/doing go throughneed doing不要和新概念英语第2册第44课一样... 英语翻译指导员：谢天谢地你终于来了.这是你第一次接头任务,组织上相信你.你务必要完成任务.刘：保证完成任务!指导员：好,坐.一会儿接完头你把这个交给交通员.你记住了.一会儿咱们交 只有一个地球 一文是在呼吁人们怎么做? 只有一个地球一文呼吁人们怎样做急 上厕所,用英语怎么说啊? “他去上厕所了”英语怎么说 他去上厕所了,一会回来用英语怎么说? 起床去上厕所 用英语怎么说?急求! 天文菜鸟该买些什么样的双筒望远镜啊?看到网上有好多,真不知道该怎么选,比如要看到木星的卫星或土星的光环需要一个放大几倍的双筒望远镜哪些是名牌,国产的好还是.是不是还要一个三 _________,I believe,and you will find him very outgoing.A.Having a talk with Daniel \x05\x05B.Have a talk with DanielC.If you have a talk with Daniel \x05\x05D.After having a talk with DanielB One talk with him,I believe ,and you will find he is good.为什么不是 Having a talk with him _______, I believe, and you will find the student is very outgoing.A. One talk with him B. Given a talk with him C. Having a talk with him D. If you have a talk with him 急需英文剧本,要有中文翻译, 美国与中国有什么区别 英语翻译The Chinese New Year is now popularly known as the Spring Festival because it starts from the Begining of Spring (the first of the twenty-four terms in coodination with the changes of Nature).Its origin is too old to be traced.Several exp 英语翻译Many people think New York is a noisy city,even inside the taxis (出租车).When you get into a taxi,you hear the voice (声音) of a well-known singer,a sport star or some other famous persons giving instructions.The voice of the famous 氯化钠和醋酸不是不会反应吗?那为什么用食用醋可以更好的清除汗渍呢?（请解释的清楚点）如果是油渍，那为什么不用食用油啊，有机物易溶于有机溶剂嘛 化学（奇怪内）不用任何其他试剂可以鉴别下列六瓶溶液：FeSO4 ,NaOH ,H2SO4 .BaCl2 ,H2O2 ,AlCl3 奇怪的化学题主族元素A有一个价电子,主族元素B的最高价与最低价的绝对值相等,它们形成化合物的化学式是---------- 奇怪的化学现象高锰酸钾（aq）和溴（aq）放在两个相同的塑料瓶里,避光密封保存,两天后两溶液都褪色了,不同的是：装高锰酸钾（aq）的瓶子软了,装溴（aq）的瓶子硬了.是怎么回事?（原理 2009年有哪些天文天象? 依波表后面表示：s.steel case&bandlinks tungsten case bezel&bandbeads 30m water resistant 05598236 0依波表后面表示：s.steel case&bandlinks tungsten case bezel&bandbeads 30m water resis 翻译成英文：亲爱的,谢谢你一路的支持与相伴! 质子数和电子数相同的离子有——————从中选①H2O②OH-③CH4④F-⑤NH4+⑥Na+⑦HF⑧Ne答案肯定是有的,只是跟我解释清楚!我觉得很奇怪,网上查过他们说是5,6是的,可是他们写的自相矛盾~你们 双筒望远镜适合天文观测吗?要多少倍,什么品牌好?