【正确答案】
B
【答案解析】Hyperthyroidism is a hypermetabolic state characterized by signs, such as tachycardia, systolic hypertension, and anxiety--all seen in adrenergic (sympathetic) stimulation. Manifestations of hypovolemic shock, benzodiazepine overdose, and Addison's disease are more similar to a hypometabolic state.