题目内容

若测血pH 7．00，PaO270mmHg，PaCO2 70mmHg，HCO-326mmol／L。诊断该患儿合并

A. 代谢性酸中毒
B. 混合性酸中毒
C. 呼吸性酸中毒
D. 呼吸性碱中毒
E. 呼吸性碱中毒合并代谢性酸中毒

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6个月患儿，发热，咳喘2天住院，半日来喘憋加重，食欲尚好，未吐泻。查体：体温38℃，烦躁，口鼻周发青，鼻翼扇动，三凹征()，呼吸80次／分，呼气相延长，双肺闻喘鸣音，少量细湿啰音。血常规：白细胞4．6×109／L，N 44％；胸片：双肺纹理重，伴少量小点片影及肺气肿。
诊断最可能的是

A. 腺病毒肺炎
B. 呼吸道合胞病毒肺炎
C. 支气管哮喘
D. 哮喘性支气管炎
E. 金黄色葡萄球菌肺炎

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A. to
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Before ____ a promotion, Sam had presented a report on how the school should be run better.

A. get
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D. he get