GMAT 07套-Q2 考题|句改|语法|SC|博森|王可达
来源: | 作者:passion | 发布时间: 2015-05-24 | 7474 次浏览 | 分享到:

D) core, rotating independently and more quickly than Earth's outer layers, are responsible for advancing studies of the flow of heat from the inner through the outer planet, and the formation and periodic reversal in direction of Earth's magnetic field

E) core, rotating independently of and more quickly than Earth's outer layers, is responsible for advancing studies of the flow of heat from the inner through the outer planet and of how Earth's magnetic field forms and the periodic reversal of its direction



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