题目内容

体内铁缺乏分为以下哪几个阶段

A. 铁减少期
B. 铁耗竭期
C. 红细胞生成缺铁期
D. 缺铁性贫血期
E. 铁边缘性缺乏

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碘缺乏可引起哪些症状

A. 甲状腺肿大
B. 流产
C. 克汀病
D. 高碘性甲状腺肿
E. 胎儿畸形

机体氟过量可能引起下列哪些症状

A. 氟斑牙
B. 大骨节病
C. 智力发育障碍
D. 氟骨症
E. 骨质疏松

It is improper to ____ (different) between pupils according to their family background.

He had been a strict father but was ____ (indulge) to his grandchildren.

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