【毎日のテーマ】【建設版20160425】
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この投稿は最後にhesonchang214によって2016-5-11 11:33に編集されました。参加報酬：2財富。正解の報酬：9富。 圧密工程を行うことができる土工建設機械は( ) A. 推土機 B. 荷役機 C. シングルバケット掘削機 D. フォークリフト掘削機 正解：B
A. 推土機~~~~~~~~
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