【判断题】【消耗次数：1】
在体内的各种元素中，铁参与制造血红蛋白，钙和纳与肌肉系统的工作。
①
正确
②
错误
参考答案：
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相关题目
【单选题】
下列关于血红蛋白（Hb）与O<sub>2</sub> 结合特征的叙述，正确的是（）
①
Hb与O<sub>2</sub> 的结合是可逆的氧化作用
②
血液[H<sup>+</sup> ]升高时，Hb与O<sub>2</sub> 的亲和力增强
③
氧离曲线右移，表示Hb与O<sub>2</sub> 的亲和力增强
④
CO与Hb的亲和力是O<sub>2</sub> 的210倍
⑤
Hb浓度低下时，氧合血红蛋白减少，血液呈紫蓝色
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the happier
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the happy
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so happy
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very happy
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I am so happy he is very healthy.
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苹果公司已经开发了市场学教材。
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—It’s raining so heavily outside. I’m terribly anxious about my son’s safety. — .A. Well. He is a good boy.B. Yes, it is. It will rain tomorrow.C. Don’t worry about him. He will come back safe and sound.2. —Do you have much experience with caring for babies?
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Well. He is a good boy.
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Yes, it is. It will rain tomorrow.
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Adictionarymaydefinegenetics_________simply“thescienceof thestudyof heredity”.
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with
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to
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as
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in
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why
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