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環境保護 デイリーステッカー5.08 参加報酬3 正解するとさらに3

2016-05-08View Original

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この投稿は最後にwamj6566によって2016-5-13 04:27に編集されました。複数選択問題:以下の物質のうち、大気中の主な汚染物質はどれですか?( )A.二酸化硫黄 B.窒素酸化物 C.粒子状汚染物 D.酸性雨 .A.B.C
Reply #22016-05-08
A. 二酸化硫黄 B. 窒素酸化物 C. 粒状汚染物 D. 酸雨
Reply #32016-05-08
以下の物質のうち、大気中の主な汚染物質はどれですか?(A.二酸化硫黄 B.窒素酸化物 C.粒子状汚染物)

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