問題詳情

26. The so-called greenhouse effect is the problem caused by increased quantities of gases such as carbon dioxide in the ____.
(A) water
(B)ground
(C) atmosphere
(D) houses

參考答案

答案：[無官方正解]
難度：非常困難0
統計：A(0),B(0),C(3),D(0),E(0)