联合用药的目的是() ["A．增强疗效","B．减少不良反应","C．减少耐药性","D．减少单味药用量","E．促进药物消除"]
第二信使有() ["A．钙离子","B．肌醇磷脂","C．环磷腺苷","D．环磷鸟苷","E．镁离子"]
凝血酶原时间延长见于() ["A．肝损伤","B．阻塞性黄疸","C．维生素K缺乏","D．凝血酶原缺乏","E．血小板下降"]
吸收最快()吸收最慢()直接进入体循环，没有吸收的过程()可能有首关消除() ["A．口服给药","B．静脉注射","C．舌下含服","D．经皮给药","E．吸入给药"]
出现凝血酶原时间延长的疾病有() ["A．阻塞性黄疸","B．消化性溃疡","C．肝硬化","D．血友病","E．心肌梗死"]
弱酸性药物在酸性环境中()弱酸性药物在碱性环境中()弱碱性药物在碱性环境中()弱碱性药物在酸性环境中()
