每天晚上,爸爸都要检查我的作业,今天也不例外。突然,爸爸对我说:“心悦,这道题你是怎么做的呀?这个条件怎么没用呢?” 我一看,题目是这样的:某水泥厂去年生产水泥232400吨,今年头5个月的产量 Every night, my father should check my homework, today is no exception. Suddenly, my father said to me: “Pleasure, how do you solve this problem? How can this condition be useless?” I saw the title is this: a cement plant produced 234,400 tons of cement last year, this year First five months of production