A SEAMARK，I.E. A BUOY，INDICATING THE NORTH，EAST，SOUTH OR WEST FROM A FIXED POINT，E.G. A WRECK is（）.

A . Red buoy with a horizontal yellow band B . Red and white vertically-striped buoy with a vertical yellow stripe C . Red and white vertically-striped buoy with a red spherical topmark D . Green buoy with a yellow square

A . white light FL (2) and a topmark of 2 black spheres B . occulting green light and may be lettered C . yellow light and will be numbered D . continuous quick white light and may be numbered

A、On the chart B、Coast Pilot C、Light List D、Notice to Mariners

A . wreck B . shoal area C . anchorage area D . middle ground

A . the side of York Spit Channel B . the visibility limit of the red sector of Cape Henry Light C . a submerged obstruction in York Spit Channel D . the York River Entrance Channel

A . the side of York Spit Channel B . the visibility limit of the red sector of Cape Henry Light C . the end of York Spit Channel D . the junction of the York Spit and York River Entrance Channel

A . Yellow B . White C . Blue D . Any color except red or gree

A . bifurcation B . fish net area C . anchorage area D . dredging area

A . a junction with the preferred channel to the left B . a sharp turn in the channel to the right C . the starboard side of the channel D . a wreck to be left on the vessel's port side

A . should be passed close aboard on either side B . indicates that special caution is required C . is used at a channel bifurcation or junction D . is painted with red and white vertical stripe

A . an isolated danger mark B . a hydrographic data collection buoy C . a mooring buoy D . marking a restricted area

A . the shape of an unlighted buoy B . the light color of a lighted buoy C . the color of the topmost band D . whether the number is odd or eve

A . white light whose characteristic is Morse (A) B . group-occulting white light C . composite group-flashing (2 + 1) white light D . composite group-flashing (2 + 1) red or green light

A . numbered B . lettered C . green D . red

A . mark the position of a lost mooring B . determine your vessel's sideslip underway C . determine your speed through the water D . indicate location of a man overboard

A . WebSphere Commerce Server， WebSphere Application Server and Web server plugin B . WebSphere Application Server， Database Client and Web server plugin C . WebSphere Commerce Server， Database Server and WebSphere Application Server D . WebSphere Commerce Server， WebSphere Application Server and Database Client E . Web server， WebSphere Commerce Server and WebSphere Application Server

A . ahead B . broad on the bow C . abeam D . aster

A . information or regulatory buoy that has lateral significance B . buoy that is off-station and is marked to warn mariners of its wrong position C . dual purpose marking used where the ICW and other waterways coincide D . buoy that was set in error and will be replaced with a red nun buoy

A . lettered B . spherical C . showing a white light D . All of the above