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本世纪20年代,生物学家发现,地球上的所有动植物体内都有脂肪,脂肪酸是脂肪的最基本构成物质,物种不同,其脂肪酸成分
In the 1920s, biologists found that all animals and plants on Earth have fat in their body. Fatty acids are the most basic constituent of fat. Different species, the fatty acid composition