题目内容

第二信使包括

A. DG
B. 环磷腺苷
C. 环磷鸟苷
D. 肌醇磷脂
E. 钙离子

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下面对受体的认识,哪些是正确的

A. 受体是首先与药物直接反应的化学基团
B. 药物必须与全部受体结合后才能发挥最大效应
C. 受体兴奋后可能引起效应器官功能的兴奋和抑制
D. 受体与激动药及拮抗药都能结合
E. 经常处于代谢转换状态

关于小儿用药方面,下列哪些描述是正确的

A. 新生儿肝脏葡萄糖醛酸结合能力未发育
B. 小儿相当于小型成人,按比例折算剂量
C. 药物血浆蛋白结合率低
D. 肝肾功能未充分发育
E. 对药物反应一般比较敏感

将下列段落翻译成汉语：The automatic flight control systems (AFCS) consist of three independent systems: digital flight control system (DFCS), yaw damper system, and autothrottle system. These systems provide automatic airplane stabilization about the pitch, roll, and yaw axes and control the airplane with selective guidance from radio, heading, flight management computer, and air data computer inputs.

将下列段落翻译成汉语：The DFCS system is a two-axis (pitch and roll) system which operates the elevators and ailerons to automatically maintain altitude, airspeed and/or guide the airplane to designated locations and make automatic landings. Control functions are also translated into flight director commands for display on the pilots’ attitude director indicators.