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【多选题】
正确的干燥失重检查方法为（ ）A.
供试品应平铺在称量瓶内，厚度一般不超过5m
B.
干燥的温度均为105℃
C.
干燥后称量瓶置干燥器内，放室温再称量
D.
称量瓶不需预先在相同条件下干燥至恒重
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