It's much ____(easy)for you to use a computer if you know English.
It's very ____(consider)of you to look after my garden during my absence.
递归函数f(1)=1,f(n)=f(n-1)+n(n>1)的递归出口是___________。
A. f(1)=1
B. F(1)=0
C. f(0)=0
D. F(n)=n
递归函数f(1)=1,f(n)=f(n-1)+n(n>1)的递归体是____________。
A. f(1)=1
B. F(0)=0
C. F
D. F(n)=f(n-1)+n
E. F(n)=n