GMAT 07套-Q9 考题|逻辑|CR|博森|王可达
来源: | 作者:passion | 发布时间: 2015-06-03 | 6015 次浏览 | 分享到:

D) The sound of a boat engine generally travels much further under water than it does through the air.

E) When experimenters exposed manatees to the recorded sounds of boats moving at various speeds, the creatures were unable to discern the sounds over normal background noise. 


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