Benjamin Franklin established that lightning is the transfer of positive or negative electrical charge between regions of a cloud or from cloud to earth. Such transfers require that electrically neutral clouds, with uniform charge distributions, become electrified by separation of charges into distinct regions.
The passage suggests that lightning bolts typically
(A) produce a distribution of charges called a positive dipole in the clouds where they originate
(B) result in the movement of negative charges to the centers of the clouds where they originate
(C) result in the suspension of large, positively charged raindrops at the tops of the clouds where they originate
(D) originate in clouds that have large numbers of negatively charged droplets in their upper regions
(E) originate in clouds in which the positive and negative charges are not uniformly distributed
答案选E,但是截取的最后一句话,难道不是说with uniform distributions?
闪电的产生 是由于原来电荷均匀分布的中性云(electrically neutral clouds with uniform charge distributions),其电荷分布变得不再均匀(become electried by separation of ....),电荷在云层之间或者云地之间传递(the transfer of positive or negative ....)。明显E是对的啊。