問題詳情
【題組】30. According to the passage, it is believed that the largest extinction of a species occurred
(A) 26 million years ago
(B) 65 million years ago
(C) 225 million years ago
(D) 250 million years ago
參考答案
答案：C
難度：簡單0.846154
統計：A(1),B(0),C(11),D(1),E(0)