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【毎日のテーマ】【建設版20160501】

2016-05-01View Original

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参加報酬:2富。正解者への報酬:9富 一般の工業用および民間用建築物の屋根の防水等級は( )です。   A、I級 B、II級 C、III級 D、IV級
Reply #22016-05-01
答:一般的な工業用および民間建築の屋根の防水等級は(B)です。 
Reply #32016-05-01
一般的な工業用および民間建築の屋根の防水等級は(B、Ⅱ級)です。 
Reply #42016-05-01
一般的な工業用および民間建築の屋根の防水等級はⅢ級で、適切な使用期間は10年です。

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