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【单选题】
儿童佝偻病、成人的骨质软化症、老年人的骨质疏松症都跟下列哪一种维生素的缺乏有关?
【单选题】
儿童佝偻病、成人的骨质软化症、老年人的骨质疏松症都跟下列哪一种维生素的缺乏有关?
【判断题】
佝偻病、高钙血症、手足抽搐是缺乏矿物质钙钙质。
【判断题】
硒对心脏有保护作用,缺乏可导致克山病。
【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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【单选题】
维生素D缺乏性佝偻病的典型症状表现并不包括( )。
【单选题】
光滑--和粗糙奶嘴实验,说明婴儿认识到来自同一来源的( )信息的一致。
【单选题】
利用( )在头脑中重建事物和过程来解决问题的运算叫做形式运算。
【单选题】
影响儿童攻击性行为的影响因素,不包括( )。
【单选题】
心理学家认为,游戏能在学前儿童的( )内搭建一个发展的支架,使其延伸自己的能力。
【单选题】
( )开始出现了对自己的认识活动和语言的意识。
【单选题】
教育能不能对儿童产生影响,取决于儿童的( )。