单项选择题
The equipment is very old. It’s not worth（）.
A.to repair B.repair C.repaired D.repairing
单项选择题 The aft part of a vessel on the port side is called port（）.
单项选择题 - What kind of paint for the hull? -（）.
单项选择题 The first coat to a bare metal surface is the（）.
