問題詳情

【題組】43.It is one thing to locate oil, but it is quite another to _____ and transport it to the industrial centers.
(A) permeate
(C) distinguish
(B) extract
(D) concentrate

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)