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【单选题】
在板框过滤机中，如滤饼的压缩性指数为0.4，且过滤介质阻力可忽略不计，则当过滤的操作压强增加到原来的一倍时，过滤速率将为原来的（）倍。A.
1.3
B.
1.5
C.
1.4
D.
1.3
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A.
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B.
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C.
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D.
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A.
act
B.
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C.
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