某中等氟病区的病人,其症状为肉眼可见牙齿微黄,并有部分人的牙齿缺损,骨关节疼痛,四肢僵直,进而行动困难。化验:尿氟、发氟增高预防氟中毒的最有效的方法是...

作者: rantiku 人气: - 评论: 0
问题 某中等氟病区的病人,其症状为肉眼可见牙齿微黄,并有部分人的牙齿缺损,骨关节疼痛,四肢僵直,进而行动困难。化验:尿氟、发氟增高 预防氟中毒的最有效的方法是
选项 A、改用低氟水源及低氟煤 B、改用低氟煤 C、饮水化学除氟 D、饮水物理除氟 E、增加营养
答案 A
解析

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