单选题
Where is the only place a person can obtain beta blockers?
A、
Supermarket.
B、
Convenience store.
C、
Stationary store.
D、
Doctor's office.
【正确答案】
D
【答案解析】
[分析] 细节题型。 见文中:Beta blockers are prescription drugs which have been around for 25 years.β-受体阻滞药是一种已存在25年左右的处方类药。既是处方药,当然要从医生处获得了。
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