单项选择题
If （）,the PSCO should proceed to a more detailed inspection.
A.the PSCO’s general impression confirm a good standard of maintenance B.the certificates are valid C.the PSCO believes the ship doesn’t meet the requirements D.the PSCO can’t find deficiencies at first glance
单项选择题 For a general cargo ship, is not the necessary certificate/document that the PSCO will examine（）
单项选择题 The guide shoes are secured to the crosshead by means of（）
单项选择题 Which one of the following repair will cost the least cost?（）
