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環境保護 デイリーステッカー 5.27 参加報酬 3 正解でさらに3

2016-05-27View Original

Thread Content

複数選択問題;人口が集中している地域に石炭、石炭ガラス、石炭スラグ、砂利、灰土などの物質を保管する場合、大気汚染を防ぐためには( )という対策を講じなければならない。A. 防水 B. 防火 C. 防塵 D. 防風. B C
Reply #22016-05-27
人口が集中している地域に石炭、石炭ガラス、コークススラグ、砂利、灰土などの物質を保管する場合、大気汚染を防ぐために(B、C、D)の対策を講じなければならない。A. 防水 B. 防火 C. 防塵 D. 防風.
Reply #32016-05-27
B. 防火 C. 防塵
Reply #42016-05-27
B. 防火 C. 防塵

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