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環境保護 毎日1問1.3 参加で賞あり 3問正解でさらに5の賞

2016-01-03View Original

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この投稿は最後にslll611によって2016-1-5 20:45に編集されました。判断問題:石油化学業界の汚染の特徴の一つは、汚染物質の種類が多く、その害が大きいことです。 ( A ) A 正しい B 間違っている
Reply #22016-01-04
石油化学業界の汚染の特徴の一つは、汚染物質の種類が多く、被害が大きいことです。 (A 正解)
Reply #32016-01-04
A 正解 ~~~~~~~~~~~~~~~~~~~~~~~~~

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