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【单选题】
I believe friendship is an essential element of making a healthy, ___ life.
A. flexible
B. rewarding
C. wealthy
D. inquisitive
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答案
B
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正常成人血浆占体重的___
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下述有关高渗性、低渗性、等渗性三类脱水描述哪一项是正确的___
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HCO3-重吸收的主要部位是___
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【单选题】
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机体的正常代谢必须处于___
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【单选题】
机体代谢过程中产生最多的酸性物质是___
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【单选题】
PaCO2升高兴奋呼吸中枢的机制主要是由于___
A. CO2刺激主动脉体化学感受器
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【单选题】
呼吸性酸中毒时血液中起主要作用的缓冲碱是___
A. NaHCO3
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【单选题】
肾小管尿液酸化的部位与方式是___
A. 近曲小管H+-ATP酶泵分泌H+
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正常体液中的H+主要来自___
A. 食物中摄入的H+
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