单项选择题
The wire ropes and blocks, or pulleys, on a ship are called （）.
A.fittings B.riggings C.equipment D.device
单项选择题 Each cover consists of two or （）panels.
单项选择题 A （）is at the end of the cargo runner for picking up the load.
单项选择题 The （）is fixed at the bottom of the derrick.
