問題詳情
3.0設光線通過某種玻璃 塊後，其強度減弱 
，問最少經過這樣的玻璃多少塊時，光線的強度始小於原來的 
？
(A) 塊
(B) 塊
(C) 塊
(D) 塊
(E) 塊。（已知 log3 0.4771）
，問最少經過這樣的玻璃多少塊時，光線的強度始小於原來的 ？ (A) 塊
(B) 塊
(C) 塊
(D) 塊
(E) 塊。（已知 log3 0.4771）
參考答案
答案：D[無官方正解]
難度：適中0.5
統計：A(1),B(0),C(0),D(2),E(2)
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