問題詳情
【題組】49. Why does Sweden have a lower rate of hip implant failure?
(A) Sweden has more advanced technology.
(B) Sweden has a patient data collecting system.
(C) Sweden has a much larger number of patients.
(D) Swedish doctors are more responsible and skilful.
參考答案
答案：B
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)