托福TPO18的一道阅读题!有疑问raph 3:Most lightning takes place within a cloud when the charge separation within the cloud collapses.However,as the storm cloud develops,the ground beneath the cloud becomes positively charged and lightning ca
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![托福TPO18的一道阅读题!有疑问raph 3:Most lightning takes place within a cloud when the charge separation within the cloud collapses.However,as the storm cloud develops,the ground beneath the cloud becomes positively charged and lightning ca](/uploads/image/z/8999779-67-9.jpg?t=%E6%89%98%E7%A6%8FTPO18%E7%9A%84%E4%B8%80%E9%81%93%E9%98%85%E8%AF%BB%E9%A2%98%21%E6%9C%89%E7%96%91%E9%97%AEraph+3%3AMost+lightning+takes+place+within+a+cloud+when+the+charge+separation+within+the+cloud+collapses.However%2Cas+the+storm+cloud+develops%2Cthe+ground+beneath+the+cloud+becomes+positively+charged+and+lightning+ca)
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