問題詳情
24. How much time is required for emitting smoke by lifebuoy self-activating smoke signals asper LSA Code (International Life-Saving Appliance Code)?
(A) At least 10 minutes.
(B) At least 15 minutes.
(C) At least 20 minutes.
(D)At least 25 minutes.
參考答案
答案：B
難度：適中0.53
書單：沒有書單，新增
用户評論
【用戶】阿恩
【年級】高一下
【評論內容】LSA Code 2.1.3 Lifebuoy self-activating smoke signals
【用戶】阿恩
【年級】高一下
【評論內容】LSA Code 2.1.3 Lifebuoy self-activating smoke signals