糖的化学组成与定义 ●cn(H2O)m—碳水化合物( Carbohydrates) 并非所有的糖的组成都符合上述通式 Carbohydrates - are poly hydroxy aldehydes or ketones, or substanced that yield such compounds on hydrolysis Other names- Saccharide, Sugarl Cn (H2O)m —— 碳水化合物（Carbohydrates） l 并非所有的糖的组成都符合上述通式 l Carbohydrates —— are polyhydroxy aldehydes or ketones, or substanced that yield such compounds on hydrolysis. l Other names —— Saccharide, Sugar 糖的化学组成与定义