糖类包括单糖、双糖和多糖等许多种类，它们是碳水化合物中最重要的一部分，也是构成机体的重要物质。
Carbohydrates include monosaccharide, disaccharide and polysaccharide and many other types of carbohydrates they are the most important part. also constitute an important body of material.
糖类包括单糖、双糖和多糖等许多种类，它们是碳水化合物中最重要的一部分，也是构成机体的重要物质。
Carbohydrates include monosaccharide, disaccharide and polysaccharide and many other types of carbohydrates they are the most important part. also constitute an important body of material.
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