問題詳情

7.The "different materials" mentioned in line 17 were considered different because they
(A)required more heat to burn than other substances did
(B) burned without leaving much residue
(C) were more mysterious than phlogiston
(D) contained limited amounts of phlogiston

參考答案

答案:B
難度:簡單0.833333
統計:A(0),B(5),C(0),D(1),E(0)

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