(单选题, )面代码的输出结果是（）<br class="markdown_return">A = 2.0<br cla

(单选题, )面代码的输出结果是（）
A = 2.0
B = 1.0
S = 0
For n in range(1,4):
s += a / b
t = a
a = a + b
b = t
Print(round(s,2))

A.5.17

B.8.39

C.3.5

D.6.77

正确答案是A

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(单选题, )面代码的输出结果是（ ）<br class="markdown_return">A = 2.0<br cla