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我的一张照片,作文围绕一张全家照写事,500字左右!求各位豆腐各显神通! 3X+5Y=12,3X+6Y=-11 第二题物理题 作文：一张照片的故事 1.飞机在机场跑道上滑行时,机翼上下方所受的压力差形成向上的升力,当飞机的速度达到一定时,机翼所受升力超过飞机自重,飞机就起飞了.那么飞机升力的大小与哪些因素有关呢?请提出两个 第2, 语画童年怎么样 什么叫少儿科技想象画? 年级上册英语书全部录音是人教版的新目标（mp3格式）我的邮箱是251169210@qq.com 这两道物理题是为什么啊1-2 1My sister _______ a book about France last year but I don't know whether she has finished it .A .had written B.wrote C.was writing2The sports meet has to be __________ because of the heavy rainA.put up B.put on C.put down D.put off3E-mail is very po 初中英语题9为什么选a?6为什么不选c? 初中英语选择,6题 电影《追铺》中,有一私人车被犯罪分子绑上了炸弹,只要车速低于40km/h就会自动爆炸,如果你去救人,你会如何做? 为了防止电池受潮,用一张香烟盒内的箔纸将电池包好放在抽屉里,不久发现电池已严重损坏.请分析电池损坏的原因.快答有奖! 初2物理练习题在沈括的著作《梦溪笔谈》中有下面一段话：“方家（精通学问的专家）以磁石磨针峰,则能指南,然常微偏东,不全南也.”这段话中涉及的两个重要的物理现象是什么? 在插有小树枝的封闭烧瓶中,放入一些卫生球捏碎的粉末,然后放在酒精灯火焰上微微加热烧瓶,停止加热后,烧瓶内树枝上会出现洁白 玲珑的人造“雪景”,这是因为? 如图所示,电源电压保持不变,闭合开关后,L1 L2都发光,一段时间后.其中一盏突然熄灭,电压表示数不变,而电流表的示数边小,产生这一原因是( )A L1断路 B L1短路 C L2断路 D L2短路. 三道初中英语选择题1.There are many kinds of blouses.Can you tell me ▁▁▁? How about this one?It's made in Shanghai.A which one to choose B which one will l chooseC to choose which one2.We can't see any bananas on the tree,there must b jim每年都为贫困地区的孩子捐款英文翻译 英语翻译:呼吁人们捐款 你们多久为需要帮助的人们募捐一次?的英文翻译很急!麻烦大哥大姐们帮帮忙! 题干：The science club made me _____ two years ago.I have _____ the club for two years.A.a member; been a member of B.a member; joined C.join; joined inA 3x-5y-6z=4,2x-2y-3z=5 2x-3y-4z=4 解方程, 人教版初中英语课本听力音频在哪里可以下载? 求2014新版人教版八年级下册英语英语听力MP3格式 人教版初二下册英语听力谁有呀?最好再给俩帮助我学英语的比较好的软件!我是说要MP3格式的听力材料,有视频也行. 新人教版八年级下册英语听力材料人教版新目标英语八年级下册英语听力（课文+听力材料+单词） 七年级下册英语听力 (新版 人教版)请发送到787203280@qq.com 谢谢 I am sorry,i forget to tell you----.a what to do it b what to do c how to do d which to do it 1 Will you please repeat your idea?Certainly.But I think it certain that you _ your attention.A don't pay B hadn't pay C weren't paying D aren't paying 2 It was in the stone house _ was built as a school by local villagers _ the boy finished his prim 在线急求英语选择题详细解答Nobody but the twins ________ some interest in the project till now. A. shows B. show C. have shown D. has shown