問題詳情

45 The three factors that make up_____ are heat, fuel, and oxygen, commonly called the “fire triangle.”
(A)ammunition
(B)combustion
(C)evaporation
(D)suffocation

參考答案

答案：B
難度：適中0.512821
統計：A(7),B(40),C(16),D(5),E(0)