论文部分内容阅读
一、情境引入我们学校正在铺设塑胶跑道，假如你是这个项目的负责人，你会选择什么样的工程队？（速度快的；质量好的；……）现在就有两支这样的工程队：甲队单独干１５天完成，乙队单独干１０天完成。可是，我们还想把工期再缩短，怎么办？（两队合干）那么两队合干需多少天
First, the situation introduced Our school is laying a plastic track, if you are responsible for this project, you will choose what kind of engineering team? (Fast; Good quality; ...) There are now two such teams: Team A is done 15 days alone and Team B is done 10 days alone. However, we also want to shorten the duration, how to do? (Two teams together) then two teams together dry days