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【多选题】
各类餐具的拿放技巧 ,以下正确的是( )。
A.
放玻璃杯时可用小拇指垫在杯底,轻轻放于台面,这样可以避免杯子与台面的碰撞声。
B.
拿盘子时,要手执拿盘子的边缘。
C.
手拿玻璃杯时,只允许手拿杯角或底部,避免用手接触杯口。
D.
准备干净无异物的服务托盘。
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