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【单选题】
铅酸蓄电池在放电前处于完全充足电的状态,即正极板为具有多孔性的活性物质( ),负极板为具有多孔性的活性物质( ),正负极板放在( )的溶液之中。 (1)Pb (2) PbO2 (3) PbSO4 (4 )H20 (5) H2SO4A.
(2)(1)(5)
B.
(2)(3)(5)
C.
(1)(3)(4)
D.
(2)(1)(4)
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