海船船员 2021_05_13 每日一练
According to the passage, the screen or cutters are fitted to __ (1)kill bacteria (2)break up the solid waste (3)remove solid matter with large size
A.(1)
B.(2)
C.(2)(3)
D.None of (1)(2)(3) is true
根据STCW公约值班规则B部分对防止疲劳做出的指导,防止疲劳的关键因素包括:I、下岗时段的次数;II、下岗时时段的长短;III、准予的补休
A.I、II
B.I、III
C.I、II、III
D.III