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"]
市场调研应考虑哪些因素？
The main purpose of port State control is not to（） ["prevent an unsafe ship proceeding to sea","prevent a ship threatening the marine environment","fine the ships","confirm a safe sailing"]
车辆信息控制装置的公里里程计数范围-1000～+1000km。
每节车厢都有一个控制放大器。
开展质量成本分析、研究工作应注意哪些问题？
