The safe working load of the derrick is （）.

单项选择题Close the （）, please.

A. hatch coamings
B. hatch covers
C. hatch beams
D. hatch openings

单项选择题（）is cargo handling gear.

A.Derrick
B.Crane
C.A+B
D.Anchor

单项选择题Our ship is （）with automatic hatch covers.

A.equipped
B.equip
C.equipping
D.to equip

单项选择题The cargo gear includes（）.

A. derrick, winches, cargo ropes and wires
B. derricks, windlass, capstan
C. hatch covers, derricks, windlass
D. cranes, hatches, lashing wires

单项选择题The derrick can’t be（）.

A.exceeded
B.overloaded
C.overtaken
D.overtook