以银行存款预付下年度办公租用房屋的租金15000元。(2分)
参考答案：借：待摊费用15000 贷：银行存款15000
Over the last three years a scientist had an average (arithmetic mean) yearly in come of $45,000. The scientist earned 1 times as much the second year as the first year and times as much the third year as the first year. What was the scientist’s income the second year ？
略谈张孝祥词的特点。
times as much the second year as the first year and 
times as much the third year as the first year. What was the scientist’s income the second year ？