問題詳情
【題組】69. Doctors in Peru did not usually do the new eye operations before Project Orbis came because ______.
(A) there were no such patients in Peru
(B) they disliked foreign doctors
(C) they had never heard of the operations
(D) they were not trained to do the operations
參考答案
答案：D
難度：非常困難0
統計：A(0),B(0),C(0),D(0),E(0)