A. The safety of air ambulances. B. The safety of rescue workers. C. Air ambulance accidents since 1978. D. Helicopter crashes since 2000. 参考答案:A 答案解析:[听力原文]21-22 The Federal Aviation Administration is asking air ambulance companies to adopt be
第26题: [单项选择]治疗表实无汗、咳嗽气喘者,应首选( )。 A. 石膏 B. 桔梗 C. 麻黄 D. 桂枝 E. 苦杏仁 参考答案:C 答案解析:[解析] 麻黄的应用:①风寒感冒。麻黄发汗力强,为发汗解表之要药,多用于外感风寒表实证,恶寒无汗,脉浮紧。每与桂枝相须为用。②咳嗽气喘。麻黄宣肺平喘作用强,是治肺气壅遏所致喘咳的要药,常配伍苦杏仁以止