2012年广西桂林市中考化学试卷(教师版)
2012年广西桂林市中考化学试卷(教师版)一、选择题(共25小题,每小题2分,满分50分。每小题只有一个选项符合题意)1.(2分)糖类是食物中的主要营养成分之一,下列食物中富含糖类的是( )A.蔬菜B.℃米饭C.肉类D.牛奶【微点】生命活动与六大营养素.【思路】人体的六大营养物质是:水、无机盐、蛋白质、脂肪、糖类和维生素,蛋白质、脂肪、糖类是给人体提供能量的物质。蔬菜和水果中含有较多的维生素;米饭中含有淀粉,淀粉属于糖类;瘦肉含有较多的蛋白质,肥肉中含有较多的脂肪;牛奶中含有较多的蛋白质。【解析】解:A、蔬菜和水果中含有较多的维生素,故选项错误;B、米饭中含有淀粉,淀粉属于糖类,故选项正确;...
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