問題詳情

【題組】67. It can be inferred that some day we might not worry about ________.
(A). air pollution
(B). our boat traffic
(C). our power supply
(D). our supply of sea fish

參考答案

答案：C
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)