单项选择题
A.knowing B.know C.to know D.knew
This windlass （）now.A. has repairedB. is under repairC....
单项选择题This windlass （）now.
A. has repaired B. is under repair C. was repaired D. had repaired
The blocks and gooseneck of the jumbo need （）.A. disman...
单项选择题The blocks and gooseneck of the jumbo need （）.
A. dismantling and inspecting B. dismantled and inspected C. to dismantle and inspect D. dismantle and inspect
One （）of the pilot ladder has been damaged. Please repa...
单项选择题One （）of the pilot ladder has been damaged. Please repair it at once.
A.step B.shackle C.chain D.cable
