問題詳情
29.那個誰在燒杯內改注入果汁，此時燈泡會發亮，若不斷在果汁中加水稀釋，則燈泡亮度有何變化？
(A)慢慢變暗
(B)慢慢變亮
(C)先變暗再變亮
(D)先變亮再變暗。
(A)慢慢變暗
(B)慢慢變亮
(C)先變暗再變亮
(D)先變亮再變暗。
參考答案
無參考答案
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