离子在人体中起着重要的作用.根据下列微粒的结构示意图圆圈内“ 号和数字表示带正电的质子的数目弧线上数字代表各电子层带负电的电子的数目 Template




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tomski离子在人体中起着重要的作用.根据下列微粒的结构示意图圆圈内“ 号和数字表示带正电的质子的数目弧线上数字代表各电子层带负电的电子的数目 coloring