单选题 In many countries in the world

A、 medical school degree is not enough for a medical license.
B、 further exams are necessary only when physicians want to become experts.
C、 a licensed physician can practice medicine only within his province.
D、 only staff members can admit patients to the hospital.

【正确答案】 B

【答案解析】[解析] 本题考查细节。本文最后—句谈到的内容正好与选项[B]相吻合。本句中的to be accredited as意思是“被任命的，被承认合格的”。