金属易导电是因为内部有大量的,橡胶不易导电是因为内部几乎没有. 答案:【1】自由电子【2】自由移动的电荷----Where can you find Li Hong?----Let me see. She is in _________. Her classroom is on the first floor.A. grade seven, class eightB. eight class, grade sevenC. Grade Seven, Class EightD. Class Eight, Grade Seven