[耍冷] 直流電跟交流電要猜哪個?
是這樣的 小明今天考物理
其中有一題問的是圖中燈泡是交流電還是直流電
小明完全不知道
最後他被送到保健室
為什麼?
老師!小明他先寫直流!!
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06/23 17:03,
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噓
06/23 17:38,
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