問題詳情
47 Portable fire extinguishers are categorized by ______.
(A)the cost of the extinguisher
(B)who is able to use the extinguisher
(C)the types of fire for which they are intended
(D)whether they are for commercial or residential use
參考答案
答案：C
難度：困難0.325
統計：A(7),B(8),C(13),D(10),E(0)