問題詳情
【題組】50.The U. S. is trying to reduce joint replacement failure rate by_____..
(A) strictly controlling the number of replacement operations
(B) asking hospitals to follow up each case for 12 -18 months
(C) setting up a national joins replacement database
(D) sending doctors to be trained in Sweden
參考答案
答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)