【名词&注释】
过敏反应(allergic reaction)、暂时性(temporary)、急诊科(emergency department)、造影剂(contrast media)、副反应(side effect)、荨麻疹(urticaria)、呼吸困难(dyspnea)、脾肾阳虚(yang deficiency of spleen and kidney)、肾阳虚衰(deficiency of the kidney-yang)、人工呼吸(artificial respiration)
[单选题]真武汤的主要病机是
A. 肾阳虚衰(deficiency of the kidney-yang),寒湿内盛
B. 肾阳亏虚,水气泛滥
C. 脾肾阳虚(yang deficiency of spleen and kidney),关门不利
D. 下元亏虚,气化不利
E. 邪侵少阴,肾失所主