彭尼是美国一零售店的老板,商店的生意很不景气,仓库里堆满了积压的货品,成了老鼠栖身的场所。彭尼不得不经常到仓库里灭老鼠。这使他发现了一种奇特的现象“:往往在一个老鼠洞里能掏出一窝老鼠,但很少发现有老鼠单独居住的。”彭尼是精明的生意人,善于把发现的奇特现象,运用到 Penny is the owner of a US retail store. The business of the store is very sluggish. The warehouse is full of backlogs of goods and has become a place for rats to live. Penny had to go to the warehouse to kill rats. This led him to discover a peculiar phenomenon: “They can often find a nest of mice in a mouse hole, but rarely find a mouse living alone.” Penny is a shrewd businessman, good at discovering the peculiar phenomenon ,Applied to