Lateral movement of the vessel to leeward of its course defines （）.

单项选择题Information on the operating times and characteristics of foreign radiobeacons can be found in which publication? （）

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

单项选择题In Admiralty Sailing Directions，bands is the word used to indicate（）marking．

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

单项选择题For full information regarding the current circulation of the Indian Ocean,（） Sailing Direction,Current Atlas,etc.

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

单项选择题During daylight savings time the meridian used for determining the time is located farther （）.

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

单项选择题During a period of whiteout，you should expect which of the following（）.

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