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【单选题】
下图为人体对体温与水平衡的调节的示意图，①～⑤表示有关激素。下列叙述正确的是 [ ]A.
处于寒冷环境中，①②③④均增加
B.
反射弧的效应器中只有肾上腺而没有其它
C.
可以作为下丘脑分泌激素作用的靶器官有：肾上腺和甲状腺
D.
⑤的释放量与皮肤的功能无关，与渗透压有关
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【简答题】Alcohol may not be (consumer) ______________in the building.
【简答题】阅读理解。 Almost every day, we discuss the topic of health, especially for kids. But what is health? 'Health' means eating well, getting enough exercise, and having a healthy weight. Let's read the follow...
【简答题】阅读理解。 Almost every day, we discuss the topic of health, especially for kids. But what is health? 'Health' means eating well, getting enough exercise, and having a healthy weight. Let's read the follow...
【单选题】镁粉在焰火、闪光粉、鞭炮中是不可少的原料，工业上制造镁粉是将镁蒸气在某种气体中冷却．现有下列气体：①空气、②CO 2 、③Ar、④H 2 、⑤N 2 ，其中可作为冷却气体的是（ ）
A.
①和②
B.
②和③
C.
③和④
D.
④和⑤
【简答题】Almost every day, we discuss the topic of health, especially for kids. But what is health? “Health” means eating well, getting enough exercise, and having a healthy weight. Let’s read the following ru...
【单选题】镁粉是焰火、闪光粉、鞭炮中不可缺少的原料,工业上制造镁粉是将镁蒸气在某种冷却剂中冷却。下列可作冷却剂的是： ①空 气 ②二氧化碳 ③氩气 ④氢气 ⑤氮气 ⑥水
A.
①②
B.
③④
C.
③⑥
D.
③⑤
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