問題詳情
100 增加 10%，然後再減少 10%，結果是多少？
(A)100
(B)99
(C)90
(D)109
(A)100
(B)99
(C)90
(D)109
參考答案
答案：B
難度：非常簡單1
統計：A(0),B(1),C(0),D(0),E(0)
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