题目内容
在密立根油滴实验前，需要实验装置进行水平调节操作。
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在密立根油滴实验时，任意一个油滴都可以被作为实验测量对象。
Fill in the blanks.1.The production usually consists of three processes cutting, drawing and ().
The embroidery usually took the form of a dragon, a phoenix, a peony flower ora peacock all signifying（）
The () which serve as fasteners are what give life to a Qipao.
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