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環境保護 デイリーステッカー 9.21 参加賞 3問正解でさらに5

2016-09-21View Original

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空欄の部分( )、(水汚染)、そして( )は、現代世界の三大公害と呼ばれている。 大気汚染 騒音汚染
Reply #22016-09-21
(大気汚染)、(水質汚染)、(騒音汚染)

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