問題詳情

【題組】32 According to the passage, which of the following contributes the most to greenhouse effect?
(A) Methane
(B) Nitrous oxide
(C) Carbon dioxide
(D) Ozone

參考答案

答案：C
難度：適中0.649485
統計：A(18),B(6),C(63),D(6),E(0)