乳香的功效是() ["破血消癥,通经","活血止痛,消肿生肌","破血行气,消积止痛","散瘀止痛,接骨疗伤"]
吗啡的化学结构中() ["含有N-甲基哌啶","含有酚羟基","含有环氧基","含有甲氧基","含有两个苯环"]
芦根与淡竹叶具有的共同功效是()。 ["止呕","利尿","止咳","凉血","发汗"]
便血鲜红,粪血不融合者,为()。 ["远血","近血","痢疾","肛裂","痔疮"]
牛巴贝斯虫病的主要特征症状不包括() ["高热","贫血","黄疸","体表淋巴结肿大","血红蛋白尿"]
能强烈收缩血管的药物是()。能拮抗交感缩血管神经效应的药物是()。能直接拮抗心迷走神经兴奋效应的药物是()。