单项选择题
A.red triangle with the letter R B.white triangle with the letters RG C.green square with the letter G D.white square with the letter GR
When connecting the tow bridle to a tug, the end of the...
单项选择题When connecting the tow bridle to a tug, the end of the bridle is passed with a（）.
A.heaving line B.shot line C.high line D.messenger line
According to MLC,the minimum hours of rest shall not be...
单项选择题According to MLC,the minimum hours of rest shall not be less than 10 hours in any 24-hour period,and（）hours in any seven-day period.
A.70 B.72 C.75 D.77
（）directly affect the fitness and ability of a seafarer...
单项选择题（）directly affect the fitness and ability of a seafarer to perform watchkeeping duties.
A.Smoking B.Drug and alcohol abuse C.Fruit D.Vegetables
