题目内容
(请给出正确答案)
[单选题]
宽极距电除尘器的同极距为()。
A.250~300mm;
B.400~750mm;
C.300mm;
D.400mm。
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A.250~300mm;
B.400~750mm;
C.300mm;
D.400mm。
第2题
A、0.1mm,0.03mm,0.02mm;
B、0.1mm,0.05mm,0.02mm;
C、0.2mm,0.02mm,0.05mm;
D、0.05mm,0.02mm,0.03mm。
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