【单选题】After an IOPP Certificate is issued to an inspected vessel,how many other surveys of the vessel's pollution prevention equipment are conducted during the period of validity of the certificate?
【单选题】我国民用航空器适航管理的宗旨是?
C.
保证民航安全、维护公众利益、促进民航事业发展
【单选题】为了放大缓慢变化的非周期信号或直流信号,放大器之间应采用( )
【判断题】A certificate is an official document verifying the truth of something.( )
【单选题】客人对酒店的期望,不仅仅是希望使用酒店里的设施设备,更希望酒店像 “ 家 ” 一般,营造出的氛围具有
【单选题】In which case is the IOPP Certificate of an inspected vessel NOT invalidated?
A.
The required oily-water separator malfunctions
B.
The ship is transferred to Liberian registry
C.
An annual survey is conducted fifteen months after the date of certificate issuance
D.
A 15 ppm oily-water separator is replaced by a 100 ppm oily-water separator
【单选题】为了放大缓慢变化的非周期信号或直流信号,放大器之间应采用( )