關於Althoughmanhasknowna的百科

•    Althoughmanhasknownasbestos(石棉)formanyhundredsofyear...

• 問題詳情：   Althoughmanhasknownasbestos(石棉)formanyhundredsofyears,itwasnotuntil160yearsagothatitwasminedforthefirsttimeontheNorthAmericancontinent.H.W.Johns,ownerofaNewYorkCitySupplyShopforroofers（蓋屋頂的人）,wasresponsiblefor(對…負責)theopeningof...
• 2020-01-1012673