试题与答案

在每个单格电池中,负极板的数量总是比正极板要多()片,正极板都处在负极板之间,最外面

题型:填空题

题目:

在每个单格电池中,负极板的数量总是比正极板要多()片,正极板都处在负极板之间,最外面两片是负极板。

答案:

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