运动会上用的发令响,游泳池里湛蓝色的水,体操运动员在做单杠运动前双手也涂上白色粉末,都是化学在运动场上的应用。 化学 在我们日常生活各领域都有很广泛的应用。下面介绍...
工作找不到!这些错误你犯了吗? 1. Using a generic cover letter. 使用千篇一律的求职信 If youre not customizing your letter for the company youre applying to and showing why youre especially interested in the firm, yo...
实验里所用的药品,有的有毒性,有的有腐蚀性。因此,取用化学药品有着严格的规定。要求做到"三不",不能用手接触药品,不要把鼻孔凑到容器口去闻气体的气味。不许尝药品的味道。 取...
想提升职业形象?从个人头像开始 Heres the problem with social media: Its turned everyone into his (or her) own personal 社交媒体有个问题:它把每个人都变成了他(或她)自己的个人公关代理。 Think abou...
The adolescent girl from Tennessee is standing on the stage of a drama summer camp in upstate New York. Its a beautiful day. But the girl doesnt feel beautiful. Shes not the leggy, glamorous Hollywood type. In fact, she describes herself as...
2013年常州市初中数学(试卷分析).doc...
有机物的检验与鉴别,主要有以下四种方法: 1、检验有机物溶解性:通常是加水检查、观察是否能溶于水。例如:用此法可以鉴别乙酸与乙酸乙酯、乙醇与氯乙烷、甘油与油脂等。...
dialogue 1 E: Have you made up your mind about not going back to your hometown after graduation? Where else would you go? 你已经决定毕业以后不回家工作了吗?那你要去哪里呢? P: I would try to land a job in Beijing. I jus...
虹口区2013学年度第一学期初三数学分层练习.doc...
苯酚与溴水反应的实验在高中教材(试验修订本)第二册中是以演示实验出现的,书中有这样一句话:“苯酚与溴的反应很灵敏,常用于苯酚的定性检验与定量测定。”很多学生把这句...