第13题: [单项选择]{{B}} Passage One
Questions 26 to 28 are based on the passage you have just heard.{{/B}} A. Local community. B. Labor market. C. Advertisement agent. D. Administrative office. 参考答案:C 答案解析:[听力原文]
According to the passage, where did people in Beijing often go for opportunities when they l
第17题: [单项选择]下列各项,除哪项外,均可引起血钾降低 A. 严重呕吐、腹泻 B. 大量应用肾上腺皮质激素 C. 大量应用胰岛素 D. 代谢性酸中毒 E. 代谢性碱中毒 参考答案:E 答案解析:正常血钾浓度为3.5~5.5mmol/L。血钾浓度低于3.5mmol/L表示有低钾血症。常见原因有:①长期进食不足。②应用呋塞米、依他尼酸等利尿药,肾小管酸性中毒,急性肾衰竭的多尿期,以及盐皮质激素(