单项选择题
普通铅蓄电池极板使用的材料是:
A、正极板氧化铅,负极板铅
B、正极板铅,负极板锂
C、正极板硫酸铅,负极板铅
D、正极板氧化铅,负极板锌
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治痈疡剂分为散结消痈剂、托里透脓剂以及补虚敛疮剂三类。( )
A.对
B.错
