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按汉语提示完成句子
The thing with dragons and frogs on it ________(被用来) testing earthquakes in old China. It's very useful in those days.
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解析:
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was used for |
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题目内容
按汉语提示完成句子
The thing with dragons and frogs on it ________(被用来) testing earthquakes in old China. It's very useful in those days.
|
was used for |