A、stopping the main engine suddenly
B、changing the main engine running direction suddenly
C、the sailing from the shallow water area to the deep water area
D、the ship’s trim too much
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A、IALA Buoyage system B、hydrography，topography，navigational aids and their services C、basic meteorology and navigation in ice and hazards and restrictions to navigation D、information on tides，currents and characteristics of the sea
A、A.for precise navigation in coastal waters B、B.by measuring the phase difference of the dots and dashes C、C.as an aid to ocean navigation D、D.if the vessel is fitted with a special Consol receiver
A、It's of no use for navigation and would be removed with notice B、It's useful in navigation and may be removed without notice C、It's helpless in navigation and may be removed without notice D、It's helpful in navigation and may be removed without notice
A、The topics for warnings included in HYDROLANTS，HYDROPACS，and NAVAREA warnings are the same B、NAVAREA warnings concern only coastal navigation and inland navigation in large bays or sounds such as Puget Sound C、The United States is responsible for NAVAREA warnings in the North Atlantic north of 7°N，and west of 15°W D、Long range radio navigational warnings are usually broadcast by radiotelephone，radiotelegraph，and radio-teletypewriter
A、has nothing to do with navigation B、dangerous to navigation C、the mine is drifting with the wind D、the mine is not sighted by the vessel
A、A.continue to be responsible for the safe navigation of the ship B、B.Leave the bridge C、C.Keep the watch on the bridge D、D.Use any available navigational aids necessary to ensure that the ship follows the planned course
A、ahead of the storm center B、in the dangerous semicircle C、in the navigable semicircle D、directly in the approach path of the storm
A、navigating with a low diesel engine speed B、navigating with a stable diesel engine speed C、increasing the efficiency of propeller D、increasing fuel injection
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