問題詳情
40. The required number of dual _____ nozzles are on board, and each fire hose togetherwith any necessary fittings and tools kept ready for use in a conspicuous position near waterservice hydrants or connections.
(A) usage
(B) alternatives
(C) selection
(D) purpose
參考答案
答案：D
難度：適中0.478261
統計：A(3),B(5),C(3),D(11),E(0)