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自動販売機マニア（石田健三郎）

@jido__hanbaiki

【問題】なぜ1番と2番のボタンがAと Bに置き換えられているのか、その理由を推測せよ（5点）

A white vending machine with a glass front displaying various drinks and snacks in rows. The machine has a keypad with green buttons numbered 3 to 21, and buttons labeled A and B at the top. A green light is visible above the keypad, and a coin slot and dispensing area are on the right side. Japanese text and product labels are visible on the items inside.

A white vending machine with a glass front displaying various drinks and snacks in rows. The machine has a keypad with green buttons numbered 3 to 21, and buttons labeled A and B at the top. A green light is visible above the keypad, and a coin slot and dispensing area are on the right side. Japanese text and product labels are visible on the items inside.

11:03 AM · Sep 8, 2025

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