5.将铜片和锌片用导线连接后插入番茄里 如右图所示电流计指针�生偏转锌片是 A.负极 b.正极 c.阴极 D.阳极——青夏教育精英家教�—— Template




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tomski5.将铜片和锌片用导线连接后插入番茄里 如右图所示电流计指针�生偏转锌片是 a.负极 coloring