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案例分析题It should be kept in mind that crying is the natural province of the infant. Babies come into this world and most immediately begin crying, and they will use this communication (36) of pre-language development to communicate all their (37) . But, studies also show that boy’s cries may be ignored for (38) longer, and especially in certain cultures, girl’s cries are (39) to immediately. From birth we may be taught there are immediate (40) for crying, or that it is of little purpose, depending on our (41) . Whether or not people cry as adults may have much to do with the way their society treats tears. In many societies, tears in men are only (42) at a few occasions, perhaps a funeral. This is (43) indeed; especially when boy children are told not to cry regularly, (44) . Instead, anger becomes the preferred emotion because it is more "male", and men may need to work very long and hard to access the grief behind anger. (45) . When people cry, especially women, they may be viewed as "emotional" as though this is a negative characteristic. On the other hand, most experts will point out that (46) . 38()

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参与生物转化的有()

A. 细胞色素P450
B. 铁硫蛋白
C. 两者都是
D. 两者都不是

人体内胆同醇分解代谢的产物是

A. 乙酰CoA
B. CO2和H2O
C. 酮体
D. 甲羟乙酸
E. 胆汁酸

苹果酸穿梭作用的生理意义在于

A. 将草酰乙酸带人线粒体彻底氧化
B. 维持线粒体内外有机酸的平衡
C. 进行谷氨酸、草酰乙酸转氨基作用
D. 为三羧酸循环提供足够的草酰乙酸
E. 将胞液中NADH+H+的2H带入线粒体

血糖浓度低时,脑仍能摄取葡萄糖而肝不能是因为

A. 脑细胞膜葡萄糖载体易将葡萄糖转运入细胞和胰岛素的作用
B. 脑己糖激酶的Km值低
C. 肝葡萄糖激酶的Km值低
D. 葡萄糖激酶具有特异性
E. 血脑屏障在血糖低时不起作用

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