問題詳情
38.How do you set off a portable CO2 (Carbon dioxide) fire extinguisher with a squeeze grip typerelease valve?
(A)push upper handle down
(B)open handle wheel
(C)pull lower handle up
(D)pull upper handle up
參考答案
答案：A
難度：適中0.655172
統計：A(19),B(3),C(4),D(2),E(0)