A:实施群体不同
B:享受权利不同
C:社会制度不同
D:主要作用不同
Fe2+ ⇌④① Fe3+ ⇌③② FeO42﹣(高铁酸根离子)
I.回答下列有关问题:
根据首字母提示完成下列短文。
A good class monitor gets on well w____ classmates and likes to h____ others. He often cleans the classroom and makes the classroom c____ just like h____. C____ him to be your monitor.