Last Updated:2025/09/01

教科書の図には、ルのモールス符号を視覚化した文字 -.--. が示されていた。

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The illustration in the textbook showed the character that visually represents the Morse code for 'ru' (dash dot dash dash dot).

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The illustration in the textbook showed the character that visually represents the Morse code for 'ru' (dash dot dash dash dot).

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