【毎日一問】11月2日 ガソリンの爆発限界は上下それぞれどれくらいですか?
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単択問題:毎日1問:ガソリンの爆発限界はそれぞれ( ) A.0.3% 1.0% B.1.3% 6.0% C.3.5% 8.0% D.5.5% 9.0% クイズに積極的に参加して、賞品をゲットしましょう。正解で+5点、参加で+2点。1人1回まで。2日後にこのトピックを閉じます。A. 0.3% 1.0% B. 1.3% 6.0% C. 3.5% 8.0% D. 5.5% 9.0%
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