题目内容

预锻工步应根据具体情况决定是否采用。

A. 对
B. 错

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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

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