你可能感興趣的試題

單項(xiàng)選擇題

When your vessel is proceeding to the area of traffic density,（）is used to determine the exact ranges of other ships or objects in the vicinity.

A.radar
B.GPS
C.DF
D.satellite navigator

單項(xiàng)選擇題

Which is wrong?（）.

A.Dunnage is used to reduce broken space
B.Dunnage is used to benefit ventilation
C.Dunnage is used to segregate cargo
D.Dunnage is used to protect cargo