产品开发建议书包括哪些内容？
Which of the followings is not an indication of a bad maintenance?（） a pipe with welded connections。 a pipe with several clips。 a cement box。 a leaking valve。
In deciding to detain a ship or not, the PSCO would better not（） make his decision independently。 request the owner’s representative to provide proposals。 cooperate with the flag State Administration’s representatives。 consult the organization responsible for issuing the relevant certificate。
开展质量成本分析、研究工作应注意哪些问题？
If the PSCO has clear grounds for carrying out a more detailed inspection,（） the master should be immediately informed。 the master will be prohibited from contacting the Administration or other organization。 he will carry out the inspection after the master be informed and be ready。 he will carry out the inspection without informing the master。
The main purpose of port State control is not to（）
