第8题: [单项选择]Questions 15 to 18 are based on the passage you have just heard.Why did the man give up studying physics A. He didn’t like physics any more. B. His eyesight was too poor. C. Physics was too hard for him. D. He had to work to support himself. 参考答案:D 答案解析:[听力原文]15-18 When I was at school, my ambition was to be a pilot in the Air Force. But my eyes
第25题: [单项选择]高热不退病人容易引起水钠代谢紊乱的类型是() A. 高渗性脱水 B. 等渗性脱水 C. 低渗性脱水 D. 水中毒 E. 水肿 参考答案:A 答案解析:高渗性脱水的常见原因是水分摄入不足,如长期禁食、上消化道梗阻、昏迷未补充液体、高温下劳动饮水不足等。水分排出过多,如呼吸深快、高烧、大量应用渗透性利尿药。
第26题: [单项选择]用于解除迷走神经对心脏作用的药物是() A. 肾上腺素 B. 利多卡因 C. 阿托品 D. 碳酸氢钠 E. 洛贝林 参考答案:C 答案解析:1.利多卡因是抗室性心律失常首选药,能抑制心室的异位激动。 2.阿托品能解除迷走神经对心脏的抑制作用,提高窦房结的兴奋性,促使房室传导,对心动过缓有较好疗效。 3.洛贝林是呼吸复苏药物。