A、the national flag
B、the quarantine signal
C、the Certificate of Pratique
D、the navigational light
更多“Masters of ocean-going ships must keep in mind that （） should be hoisted immediately if any quarantinable diseases be found．”相关的问题
A、an obligation for masters of passing by ships B、optional for masters of passing by ships when the weather is fine C、prohibited by the Convention SOLAS, 1974, as amended D、prohibited by the convention STCW 78/95
A、A.an obligation for masters of passing by ships B、B.optional for masters of passing by ships when the weather is fine C、C.prohibited by the Convention SOLAS, 1974, as amended D、D.prohibited by the convention STCW 78/95
A、vertical distance from the tidal datum to the ocean bottom plus the height of the tide B、vertical distance from the tidal datum to the ocean bottom C、average height of water over a specified period of time D、average height of all low waters at a place
A、vertical distance from the chart sounding datum to the ocean bottom，plus the height of tide B、vertical distance from the chart sounding datum to the ocean bottom C、average height of water over a specified period of time D、average height of all low waters at a place
A、Central North Atlantic Ocean B、Caribbean Sea C、Western North Pacific Ocean D、area off the west coast of South America
A、density differences of the water B、rotation of the earth C、direction of primary circulation of air D、all of the above
A、A.free of charge B、B.with no responsibility C、C.without limitations of distribution D、D.with little charges
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