化学反应原理知识点总结

用恒为F使质量为10kg的物体从静止开始,以2m/s^2的速度匀加速上升,不及空气阻力,g取10m/s^2,那么2s内恒力F做功为?为什么算出来是400J 答案是480J 家里的灯关了之后会不停闪,怎么回事?有节奏的 It's a photo of his family. 改为同义句,怎马改啊. 0.22微米过滤除菌能去除内毒素吗 霉菌孢子的大小?是否可以通过0.22um滤膜过滤除去?或通过反复冻融使其失活? 如何去除包上的霉菌 怎样去除外包霉菌 40个鸭蛋放多少盐正好 If_______ (training),most people can enjoy this simple sport _____________(train),most people can enjoy the sport. vwhat sports do most young people go in for 求一首英文歌 有海豚音的 有一段听起来是 You live me bearth 房间灯关了,有时闪一下怎么回事 房子有一点旧,灯泡总是闪,是不是线路的问题? 房间灯突然闪一下?白天看不出.每隔2分钟左右就闪一下.我家灯闪节能灯. 电路是通的 但是关上灯房间灯泡还是会闪家里的电路今天刚接好,但是晚上关灯之后房间里的节能灯会一闪一闪的,为什么会这样啊? 最近晚上所有房间的灯,经常同时闪,住了几年了,以前没出现过这种现象.特别是用洗衣机脱水的时候,问了隔壁,不象这样.那就是说是我自家线路的问题,可是从哪开始查呢,怎么查呢,找谁来检查 It's my family photo 改成同义句It's开头的 太空棉和羽绒哪个好 My mum likes to watch me（do）my homework My mum likes to watch me（do）my homework 用括号内单词适当形式填空 my mum是用watch还是watches? 【改为同义句】Pop music is more popular than rock musicRock music is _______ ______ than pop music.Rock music ________ _______ ______ ________ pop music how to face the global financial crisis for China?用英语写一段话 I thank that's__piece of music at the moment A.more popular B.the most popular C.popular 为什么有叫China Crisis的外国乐队?中国危机合唱团（China Crisis),这个名字到底跟中国有什么关系,是什么意思? We Chinese can work wonders,that is,we can make the impossible possible. He organized supply flights, for example, to affected areas. to affected areas 是什么意思? 英语作文"White a descrption(描述) of the women you have talked about.Plan your writing as follows.Make a plan.White down you all the ideas you want to use in your descrpition.Each idea will help to make a paragraph(短评).Then separate(区别) Don't try to be so affected. 英语语法：How wonderful a you have made.本句哪里错误 to的用法解释说明带to的句子