【单选题】【消耗次数：1】
佝偻病活动期（激期）的主要表现是（ ）
①
突然发生惊厥
②
易激惹、夜惊
③
骨骼系统改变
④
烦躁不安、多汗
参考答案：
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相关题目
【单选题】
佝偻病的发生是由于缺乏（ ）．
①
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②
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③
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④
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随机题目
【判断题】
党的先进性和党的执政地位都不是一劳永逸、一成不变的,过去先进不等于现在先进,现在先进不等于永远先进;过去拥有不等于现在拥有,现在拥有不等于永远拥有。
①
正确
②
错误