对任何实数x,y,函数f(x)满足f(x+y)=f(x)•f(y),且f(1)= 发布时间:2017-05-03 17:04 │ 来源:www.tikuol.com 题型:填空题 问题: 对任何实数x,y,函数f(x)满足f(x+y)=f(x)•f(y),且f(1)=2,则f(2)f(1)+f(3)f(2)+f(4)f(3)+…+f(2007)f(2006)+f(2008)f(2007)=______.
题型:填空题 —You ought to have made an apology to Tom yesterday evening.—Yes, I know I __ __.A.ought to haveB.have toC.shouldD.must have 查看答案