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Many methods are used for separating precipitated flocs. The most frequently used methods are flotation and settling. Based on the context, what is the given information, A, B, C, or D?（）

A、Many methods
B、separating precipitated flocs
C、The most frequently used methods
D、flotation and settling

发布时间：2025-11-24 06:31:30

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答案：The most frequently used methods

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Many methods are used for separating precipitated flocs. The most frequently used methods are flotation and settling. Based on the context, what is the given information, A, B, C, or D?（ ）