【单选题】【消耗次数：1】
血浆HCO3-浓度原发性增高可见于
①
代谢性酸中毒
②
代谢性碱中毒
③
呼吸性酸中毒
④
呼吸性碱中毒
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呼吸性碱中毒主要是由于（ ）
①
肺泡通气及换气功能减弱
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不能充分排出CO<sub>2</sub>;
③
血液PaCO<sub>2</sub> 增高
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肺泡通气过度
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合并肾功能衰竭
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C、呼吸性酸中毒
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D、代谢性酸中毒
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E、呼吸性酸中毒合并代谢性酸中毒
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