单选题在()情况下,负责航行值班的高级船员在白天可以是唯一的瞭望人员. ①对局面作了充分估计,确信无疑这样做是安全的; ②充分考虑了包括但不限于天气情况、能见度、通航密度、邻近的航行危险物、航行在分道通航制内或附近时必要的注意等相关因素; ③当局面的任何变化而需要时,能立即召唤人员到驾驶台协助A①B②③C①②D①②③
单选题
在()情况下,负责航行值班的高级船员在白天可以是唯一的瞭望人员. ①对局面作了充分估计,确信无疑这样做是安全的; ②充分考虑了包括但不限于天气情况、能见度、通航密度、邻近的航行危险物、航行在分道通航制内或附近时必要的注意等相关因素; ③当局面的任何变化而需要时,能立即召唤人员到驾驶台协助
A
①
B
②③
C
①②
D
①②③
参考解析
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