单项选择题

According to Dr. Scorer, lightning is caused by______.

A．rain falling through clouds
B．hail falling through supercooled clouds
C．hail falling through superheated clouds
D．ice particles falling through any clouds

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单项选择题According to the passage, Benjamin Franklin was the first to prove that______.

A．lightning is caused by hail through supercooled clouds
B．thunderclouds are not charged with electricity
C．thunderclouds are charged with electricity
D．lightning was not an invention of the devil

单项选择题Which of the following is most likely to be the subject of the paragraph following this passage

A．The process of an appeal.
B．Out-of-court settlements.
C．The state court structure.
D．Sentencing procedures.