Using the information in the text, complete each sentence 14-18, with a word or phrase from the list below. For each sentenc

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问题     Using the information in the text, complete each sentence 14-18, with a word or phrase from the list below.
    For each sentence(14-18), mark one letter(A~G)on the Answer Sheet.
    Do not mark any letter twice.
A. copy
B. a positive charge
C. a negative charge
D. super cooled clouds
E. falling hail clouds
F. hail and super cooled clouds
G. moisture particles
Ice particles bouncing off hail falling through a cloud acquire ______.

选项

答案B

解析 由文章第1段第3句:“Ice particles bouncing off the falling hail acquire a positive charge and rise to the top of the cloud while the hail carries a negative charge to the bottom of the cloud.”可知答案应为B,即从冰雹上面掉落的冰块带有正电。
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