問題詳情
21. 假設某病毒可使一位感染病人在一天內傳染給其他三人，若第 1 天有一位病人感染到此病毒，且第 2 天結束時共有四位病人感染到此病毒，以此類推，預估從第幾天結束後感染此病毒的人數超過 10 萬人？
(A) 7
(B) 10
(C) 13
(D) 16
(A) 7
(B) 10
(C) 13
(D) 16
參考答案
無參考答案
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