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GCSE 科學/電學多選練習題 4
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來自 Wikibooks，一個開放世界中的開放書籍
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GCSE 科學
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返回問題
一個插頭包含三根電線。每根電線顏色不同：紅色、藍色和綠黃色。正常情況下，插頭中只有兩根電線載流。這兩根電線分別是
紅色和綠黃色電線
藍色和綠黃色電線
紅色和藍色電線
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書籍：GCSE 科學
華夏公益教科書
