烟酸缺乏病皮肤损害好发于A．曝光和受压摩擦部位B．皮肤皱褶和细嫩部位C．口腔周围D．躯干E．四肢

作者: rantiku 人气: - 评论: 0

问题烟酸缺乏病皮肤损害好发于

选项 A．曝光和受压摩擦部位 B．皮肤皱褶和细嫩部位 C．口腔周围 D．躯干 E．四肢

答案 A

解析

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