【单选题】
_________, meteorologists hope to learn how to keep its damage to a minimum.
A.Lightning studied by
B.Lightning is studied by
C.The study of lightning
D.By studying lightning
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根据网考网移动考试中心的统计,该试题:
3%的考友选择了A选项
37%的考友选择了B选项
1%的考友选择了C选项
59%的考友选择了D选项