A.Canary Current
B.Benguela Current
C.Agulhas Current
D.South Atlantic Current

A.Leeway
B.Leeside
C.Leeward
D.Lee moving

A.List of Lights
B.Coast Pilot
C.Sailing Directions
D.List of Radiobeacons

A.horizontal
B.vertical
C.diagonal
D.vertical or diagonal

A.watch
B.look for
C.see
D.regard

A.west in west longitude and east in east longitude
B.east in west longitude and west in east longitude
C.west
D.east

A.Snowfall or blowing snow
B.Lack of ability to estimate distance
C.Harsh contrast between sun-illuminated snow cover and the background
D.Hazy horizons with extensive mirage effects

A.more serious
B.not less serious
C.more dangerous
D.no more dangerous

A.low water slack
B.high water slack
C.high water ebb
D.high water flood

A.lower low water
B.high water
C.low water
D.sea level

A.the height of the tide
B.depth of water under the bridge
C.charted vertical clearance at mean low water
D.distance from the water to low steel of the bridge