标题: 求教牛牛们 [打印本页] 作者: sasha_wen 时间: 2009-11-30 22:55 标题: 求教牛牛们 New theories propose that catastrophic impacts of asteroids and comers may have caused reversals in the Earth's magnetic field,the onset of ice ages ,splitting apart continents 80 million years ago, and great volcanic eruptions. A splitting apart continents B the splitting apart of continents C split apart continents D continents split apart E continents that were split apart 为什么答案选B,求详解，谢谢！作者: cynthia627 时间: 2009-11-30 23:12
这个是并列嘛~ the splitting apart of continents和the onset of ice ages什么的都是并列的。所以就是B咯~作者: sasha_wen 时间: 2009-12-1 13:22
谢谢指导