单项选择题

When are you allowed to throw plastic garbage overboard……

When are you allowed to throw plastic garbage overboard?（）

A.Being mroe than 25 miles from shore
B.Only at night when it‟s dark
C.Being more than 6 miles from shore
D.Never

<上一题目录下一题>

热门试题

单项选择题Which kind of fog is also named as ground fog?（）

A.Advection
B.Radiation fog
C.frontal fog
D.Steam fog

单项选择题Normally the mariners care more about the（）of tide.

A.speed
B.height
C.direction
D.course

单项选择题The International Association of Lighthouse authorities (IALA) buoyage system “A” uses some types of marks to distinguish safe navigation? Which type(s) does(do) not belong to the system?（）

A.lateral marks and cardinal marks
B.safe water marks
C.isolated danger marks and special marks
D.dangerous water marks

单项选择题Which refers to the living space for seafarers?（）

A.Poop
B.Store room
C.Accommodation
D.Saloon

单项选择题（）cargoes in IMSBC code are those that are likely to liquefy.

A.Group A
B.Group B
C.Group C
D.Group D