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This passage is about a______. [br] Ice particles bouncing off hail falling thro
This passage is about a______. [br] Ice particles bouncing off hail falling thro
游客
2023-09-16
25
管理
问题
This passage is about a______. [br] Ice particles bouncing off hail falling through a cloud acquire______.
选项
A、a negative charge
B、no electric charge at all
C、a positive charge
D、both A and C
答案
C
解析
文章第一段就谈到了这个问题,这实际上是 Scorer博士关于闪电成因的主要观点:从冰雹上反弹下来的冰粒子带正电子。
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