New theories propose that catastrophic impacts of asteroids and comets 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大牛帮忙分析一下B和C的区别,我在两个中间犹豫了半天选择了C!!! 大牛帮忙分析一下B和C的区别,我在两个中间犹豫了半天选择了C!!! 大牛帮忙分析一下B和C的区别,我在两个中间犹豫了半天选择了C!!!
[此贴子已经被作者于2007-3-13 20:10:16编辑过] |