問題詳情
【題組】52.The “It” in line 9 refers to____
(A) the average surface temperature of the earth
(B) the scientific evidence of the release of greenhouse gas
(C) the fact that humans are warming the earth
(D) the addition of the word “very”
參考答案
答案：D
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)