[此问题原为空白填充问题]
(A) 1
(B) 2
(C) 3
(D) 4答案: (B)
解释:
Let us assume: f(1) = x. Then,
f(2) = f(2/2) = f(1) = x
f(3) = f(3+5) = f(8) = f(8/2) = f(4/2) = f(2/1) = f(1) = x
Similarly, f(4) = x
f(5) = f(5+5) = f(10/2) = f(5) = y.
因此它将具有两个值。 5的所有倍数都将具有值y,其他倍数将具有值x。它将具有2个不同的值。
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