首页 > 中学英语试题 > 题目详情
（2017·江苏）The disappearance of dinosaurs is not necessarily caused by astronomical incidents. But ___...
题目内容：
（2017·江苏）The disappearance of dinosaurs is not necessarily caused by astronomical incidents. But _______ explanations are hard to find .
A. alternative B. aggressive
C. ambiguous D. apparent
本题链接：