题目内容:
WhatcanbeinferredfromParagraph3concerningdinosaurs? A.Theywerekilledoffbyanasteroid.
B.Theydiedofdrasticclimatechange.
C.Theywerewipedoffbyavolcaniceruption.
D.Thecauseoftheirextinctionhasremainedacontroversialissue.
参考答案:【答案仅供学习,请勿对照自行用药等】
答案解析: