問題詳情
254.The country has been so much plagued by the nuclear leaks and trying to find out practical _____ to keep the reactors cool and to store the radioactive waste.
(A) impressions
(B) methods
(C) stains
(D) performances
參考答案
答案：B
難度：簡單0.714286
統計：A(1),B(15),C(4),D(0),E(0)