環境保護 デイリーステッカー 5.14 参加賞 3 正解でさらに3
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複数選択問題：大気汚染において、植物に大きな被害を与えるのは（B、D）です。A一酸化炭素 B二酸化硫黄 C二酸化炭素 Dフッ化物。B、D
大気汚染において、植物にとって最も害が大きいのは（B、D）です。A一酸化炭素 B二酸化硫黄 C二酸化炭素 Dフッ化物。
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