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【单选题】
冰雹的透明层是在云内（）的云层生长起来。
A.
温度高，含水量大
B.
温度高，含水量小
C.
温度低，含水量小
D.
温度低，含水量大
参考答案：
参考解析：
刷刷题刷刷变学霸
举一反三
【单选题】与烤瓷冠桥不透明层有气泡无关的因素是
A.
烤瓷合金多次重复使用
B.
基底冠表面多方向打磨
C.
使用不正确的金刚砂车针打磨基底冠
D.
铸道按插不正确
E.
遮色瓷层过薄
【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.