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维生素是保持健康不可缺少的有机物质之一。维生素大致可分为“脂溶性维生素”和“水溶性维生素”两大类。前者主要包括维生素A、维生素D、维生素E和维生素K;后者主要包括维生素B_1、B_2、B_6、B_12
Vitamins are one of the organic substances that are essential for good health. Vitamins can be broadly divided into two categories: fat-soluble vitamins and water-soluble vitamins. The former mainly includes vitamin A, vitamin D, vitamin E and vitamin K; the latter mainly includes vitamin B_1, B_2, B_6, B_12