单项选择题
A. liquid cargo B. general cargo C. dry cargo D. bulk cargo
Some ships have（）(特殊职责) ,such as tugs.A. dutyB. special...
单项选择题Some ships have（）(特殊职责) ,such as tugs.
A. duty B. special duties C. special duty D. special
（）（货船）can be divided into two basic types.A. Cargo ship...
单项选择题（）（货船）can be divided into two basic types.
A. Cargo ships B. Oil ships C. Gas carriers D. Tramps
The most modern ship is（）（集装箱船）.A. dry cargo shipB. con...
单项选择题The most modern ship is（）（集装箱船）.
A. dry cargo ship B. container ship C. liquid cargo ship D. refrigerated ship
