题目内容:
Whydoestheauthormentiondinosaursattheendofthepassage?
A.Becausetheycouldonlyliveinthewarmclimate. B.BecausetheyoncedominatedtheEarth.
C.Becausetheirextinctionindicatesfuturedisasters.
D.Becausedinosaursandhumansneverliveinthesameage.
参考答案:
答案解析: