Which of the followings is not an indication of a bad maintenance?（）

单项选择题In deciding to detain a ship or not, the PSCO would better not（）

A.make his decision independently
B.request the owner’s representative to provide proposals
C.cooperate with the flag State Administration’s representatives
D.consult the organization responsible for issuing the relevant certificates

单项选择题The main purpose of port State control is not to（）

A.prevent an unsafe ship proceeding to sea
B.prevent a ship threatening the marine environment
C.fine the ships
D.confirm a safe sailing

单项选择题If the PSCO has clear grounds for carrying out a more detailed inspection,（）

A.the master should be immediately informed
B.the master will be prohibited from contacting the Administration or other organization
C.he will carry out the inspection after the master be informed and be ready
D.he will carry out the inspection without informing the master

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（）

A.Survey Report File
B.Minimum Safe Manning document
C.Certificates of Competency
D.International Oil Pollution Prevention