题目

Happiness is important for everyone . Most people went to be happy but few how to find happiness . Money and success don’t bring lasting happiness . Happiness depends on ourselves . In other words , we make our own happiness .Some people believe that if they are wealthy , they will be able to buy anything they want , which means happiness . On the other hand , some people believe that holding a high position in the government is happiness . In this way , you have not only money , but also many other things which can’t be bought by money . However , other people believe that having lo在4Al+3O22Al2O3反应中，从反应物、生成物之间的原子、分子个数比来看，每    个铝原子和    个氧分子发生反应，生成了    个氧化铝分子；从它们彼此之间的质量比来看，每108份质量的    和96份质量的    反应生成了204份质量的    ．