A given street median is planted with trees. Of the 30 trees in the median, 3 are lindens, one-fifth are oaks, 12 are cedars, and the remainder are maples. What is the ratio of lindens to maples?
【简答题】You are required to write a letter of recommendation according to the following information given in Chinese. 1.发信人:北京电脑公司总部经理陈林 2.收信人:怀特 3.内容:怀特先生于2005年7月19日给陈林写了一封信,希望陈林介绍一下他过去的秘书李芳。陈林在7月28日写了一封推荐信介...