Thetroublewithsuchresourcesascoal,oilandgas
问题详情: Thetroublewithsuchresourcesascoal,oilandgas______thattheyarenot renewable. A.was B.are C.havebeen D.is【回答】D知识点...
问题详情: Thetroublewithsuchresourcesascoal,oilandgas______thattheyarenot renewable. A.was B.are C.havebeen D.is【回答】D知识点...