【单选题】【消耗次数：1】
维生素是维持机体正常代谢所必须的低分子有机化合物根据溶解性分为脂溶性和水溶性两种。下列哪项不是脂溶性维生素( )
①
维生素A
②
维生素D
③
维生素B<sub> 1</sub>
④
维生素E
⑤
维生素K
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