What is the main topic of the passage? Ice crystals do NOT immediately fall to Earth because ______.

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问题 What is the main topic of the passage?
Ice crystals do NOT immediately fall to Earth because ______.

选项 A、they are kept aloft by air currents
B、they combine with other chemicals in the atmosphere
C、most of them evaporate
D、their electrical charges draw them away from the earth

答案A

解析 ice crystals即是water droplets。第1段第4、5行点明题意。

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本试题收录于：英语题库成考专升本分类

英语

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What is the main topic of the passage? Ice crystals do NOT immediately fall to Earth because ______.

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