0.25, 0.5,2,(),2,0.5。A. 1 B.4 C.0.25 D.0.125

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问题 0.25, 0.5,2,(),2,0.5。

选项 A. 1
B.4
C.0.25
D.0.125

答案B

解析本题考查递推数列。An+1/An=An+2。0. 5/0. 25 = 2,2/0. 5 = (4),(4)/2 = 2, 2/(4)=0. 5。
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