单项选择题
According to Maritime Labour Convention, 2006, The minimum age at the time of the initial entry into force of this Convention is （）years.
A.18 B.16 C.22 D.20
单项选择题 According to Maritime Labour Convention, 2006, the maximum hours of work shall not exceed（）
单项选择题 In the ISM code, “company” doesnt mean（）
