单项选择题
When rigging a bosun’s chair，a tail block or lizard is used to（）.
A.guide the bosun's chair down a stay when applying a protective coating B.run paint or tools up to a sailor in a chair with a heaving line C.keep a bosun's chair from swinging with the ship's motion D.reeve the gantline through
单项选择题 When paying out nylon line from around the bitts（）.
单项选择题 When attempting to free an anchor jammed in the hawsepipe，the simplest method of freeing it may be（）.
单项选择题 When a davit-launched raft is lowered from a ship，upon becoming waterborne，the raft is released by（）.
