男性,55岁,胸痛、气短,心电图:广泛前壁心肌梗死伴房室传导阻滞,血压50/40mmHg,临床诊断为心源性休克,最好的治疗方法是() ["去甲肾上腺素","异丙肾上腺素","多巴胺","主动脉内气囊反搏","阿托品"]
异氟烷的MAC是() ["1.5","1.15","2.5","2.15","8.2"]
呕血伴左锁骨上淋巴结肿大,多见于()。 ["胃癌","肺癌","胰腺癌","胃溃疡","肝癌"]
小连接体的宽度正确的是() ["设置前磨牙时≥1mm","后磨牙时≥1.5mm","前磨牙时≤1.0mm","后磨牙时≤1.5mm","均可"]
下列病原体中,很少能引起膜性或假膜性结膜炎的是() ["A型沙眼衣原体","念珠菌","白喉棒状杆菌","腺病毒","β溶血性链球菌"]
什么叫安全色?使用安全色的目的是什么?