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【单选题】
冰雹是从强烈积雨云中降下来的水汽凝结物，其结构是（）。
A.
一大团小冰粒
B.
水和冰粒的混合体
C.
球形雪块
D.
透明与不透明交替层次的冰块
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】For the (26) month, mysterious falls of large chunks of ice (冰雹) (27) rained down on Spain and Italy. Juana Sanchez, a 70-year-old woman in Almeria, southern Spain, was knocked (28) when she was struc...
A.
Although eyewitnesses to the phenomenon report that they did not see anything in the sky that could account (44) the ice, scientists had to come up with a rationalization. Professor Jesus Martinez Frias, the geologist investigating the ice falls in Spain, told BBC News that the ice pieces had probably been (45) through sudden temperature drops in the stratosphere. This was the most likely explanation, he said, for the "very unusual" phenomenon.