2008年吉林省中考化学试题及答案
2008年吉林省中考化学试题可能用到的相对原子质量:C—12 O—16 Fe—56 一、单项选择题(每小题1分,共8分) l.下列图中内容有利于保护人类生存环境的是 ( ) 2.我们生活和学习中常接触到的下列物质可以看成纯净物的是 ( ) A.空气 B.大理石 C.自来水 D.24k黄金饰品 3.汶川大地震后,全国各地为灾区进去了大量白菜、胡萝卜、油莱等蔬菜,这些物质可直接为人体补充的营养素是 ( ) A.脂肪 B.维生素 C.蛋白质D.糖类 4.2007年10月24日,“嫦娥一号”卫星发射成功。发射前8小时开始向运载火箭加注液氧和液氢。其中...
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