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環境保護 デイリーステッカー 4.16 参加賞 5問正解で追加賞

2016-04-16View Original

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複数選択問題:人間の活動によって海洋の赤潮が引き起こされる主な原因は?( )A、海洋漁業 B、工業廃水 C、海洋養殖場 D、生活廃水 A.B.C.D
Reply #22016-04-16
人間の活動によって海洋の赤潮が引き起こされる主な原因は?(A、海洋漁業 B、工業廃水 C、海洋養殖場 D、生活廃水)
Reply #32016-04-16
B、工業廃水 D、生活廃水
Reply #42016-04-16
人間の活動によって海洋の赤潮が引き起こされる主な原因は?(A B C D)
Reply #52016-04-16
B、工業廃水 C、海洋水産養殖場 D、生活廃水
Reply #62016-04-16
人間の活動が海洋の赤潮を引き起こす主な原因はabcdです

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