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【单选题】
Which of the following statements would provide the most of logical continuation of the final paragraph of the passage?A.
Thus Wynne — Edwards' theory raises serious questions about the constancy of animal population in a region.
B.
Because Wynne- Edwards' theory is able to explain more kinds of animal behavior. than is the density-dependent theory, epideictic explanations of population regulation are now widely accepted.
C.
The results of one study, for instance, have suggested that group vocalizing is more often used to defend territory than to provide information about population density.
D.
Some of these studies have, in fact, worked out a systematic and complex code of social behavior. that can regulate population size.
E.
One study, for example, has demonstrated that birds are more likely to use winter-roosting aggregations than group vocalizing in order to provide information on population size.
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【单选题】4-1 28岁，男性，近一周胸闷、气短。查体：右侧胸廓饱满，呼吸运动减弱，语颤消失，叩实音，呼吸音消失，气管向左侧移位，考虑
A.
右侧气胸
B.
右侧肺不张
C.
左侧肺不张
D.
右侧大量胸腔积液
E.
右下大叶性肺炎
【单选题】患者女性, 50 岁,因呼吸系统疾病,需同时服用几种药物,最后服用的药物是
A.
维生素
B.
罗红霉素
C.
维生素 B1
D.
复方甘草口服液
E.
乙酰半胱氨酸胶囊
【单选题】有关呼吸链叙述正确的是
A.
两条呼吸链由四种酶复合体组成
B.
递电子体同时也是递氢体
C.
递氢体同时也是递电子体
D.
抑制Cyt aa 3 ,则呼吸链中各组分都呈氧化态
E.
呼吸链的组分通常按E 0( 氧化还原电位) 由大到小的顺序排列
【单选题】有关呼吸链的叙述不正确的是
A.
存在于线粒体内膜
B.
呼吸链中复合体Ⅰ、Ⅱ、Ⅳ有质子泵功能
C.
递氢体也必然递电子
D.
细胞色素都是递电子体
E.
复合体Ⅲ和Ⅳ为两条呼吸链所共有
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