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【单选题】
重视人的( )是管好人的关键。A.
安全
B.
需要
C.
财产
D.
劳动
E.
地位
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反馈参考答案：
举一反三
【单选题】党 员 如 果 没 有 正 当 理 由 连 续 个 月 不 缴 纳 党 费 就 被 认 为 是 自 行 脱 党 。
A.
5个月
B.
6个月
C.
7个月
D.
8个月
【单选题】Cellular respiration is to ( ) as ( ) is to chloroplasts.
A.
nucleus, cytoplasm
B.
mitochondria, photosynthesis
C.
ATP, light
D.
nucleus, protein synthesis
【单选题】中国共产党廉洁自律准则》规定党员领导干部要廉洁从政，（）。
A.
自觉保持人民公仆本色
B.
自觉维护人民根本利益
C.
自觉提升思想道德境界
D.
自觉带头树立良好家风
【多选题】What are the roles of ubiquinone in cellular respiration?
A.
In the mitochondrial respiratory chain, the small, hydrophobic molecule ubiquinone picks up electrons from the NADH dehydrogenase complex and delivers them to the cytochrome c reductase complex.
B.
A ubiquinone molecule can accept or donate either one or two electrons, and it picks up one H + from water with each electron that it carries.
C.
Its redox potential of +30 mV places ubiquinone between the NADH dehydrogenase complex and the cytochrome c reductase complex in terms of its tendency to gain or lose electrons—which explains why ubiquinone receives electrons from the former and donates them to the latter.
D.
Ubiquinone also serves as the entry point for electrons donated by the FADH 2 that is generated both during the citric acid cycle and from fatty acid oxidation.
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