問題詳情

【題組】9.( )Scientists still have a long way to go before they can invent new drugs that are highly _____ in treating all kinds of cancers.
(A) effective
(B) gradual
(C) crisp
(D) stubborn

參考答案

答案：A
難度：適中0.652174
統計：A(15),B(3),C(1),D(2),E(0)