問題詳情
【題組】57. In the second paragraph, the phrase “these problems” refer to _______.
(A) the technological problem
(B) the global problems
(C) the economic problems
(D) the problems individual nations have
參考答案
答案：B[無官方正解]
難度：非常困難0
統計：A(0),B(6),C(4),D(0),E(0)