問題詳情

12. Walter Reed, a U.S. Army medical officer, daringly conducted experiments to determine how yellow fever wastransmitted.
(A) scientifically
(B) courageously
(C) methodically
(D) knowingly

參考答案

答案：C
難度：困難0.384615
統計：A(2),B(5),C(5),D(1),E(0)