【单项选择题】
Masts and derricks of cargo ships are made of（）.
A、A.steel
B、B.copper
C、C.bross
D、D.zinc
查看正确答案A、steel B、copper C、bross D、zinc
搜题
更多“Masts and derricks of cargo ships are made of（）.”相关的问题
第2题
A、a single mast B、two masts: with the mizzen stepped abaft the rudder post C、two masts: with the mizzen stepped forward of the rudder post D、at least two masts: a foremast and a mainmast
第3题
A、one mast B、two masts: with the mizzen stepped abaft the rudder post C、two masts: with the mizzen stepped forward of the rudder post D、two masts: a foremast and a mainmast
第4题
A、Before leaving the harbour, all derricks must be stowed. B、After leaving the harbour, all derricks must be stowed fore and aft. C、Before leaving the harbour, all derricks must be stowed fore and aft. D、Before leaving the harbour, all heavy derricks must be stowed fore and aft.
第5题
A、derrick, winches, cargo ropes and wires B、derricks, windlass, capstan C、hatch covers, derricks, windlass D、cranes, hatches, lashing wires
第6题
A、Containers are loaded and discharged by gantry cranes. B、Cases are loaded and discharged by gantry cranes. C、Cases are loaded and discharged by heavy derricks. D、Containers are loaded and discharged by heavy derricks.
第8题
A、Many ships have two derricks at each hatch. B、Many ships have two winches at each hatch. C、Many ships have two derricks and two winches at each hatch. D、Many ships have two derricks and two winches at each hatch cover.
