2019 Jiangsu Question 1 Single-choice Differentiating 2019_江苏卷 (化学) 1. (2分)糖类是人体所需的重要营养物质。淀粉分子中不含的元素是( ) A. 氢B. 碳C. 氮D. 氧 Answer keyC ☆ SaveCan't do it, show the explanation查看原卷 →