單項選擇題You are anchoring in a river where the current is from one direction only.The best way to lay out two anchors is to have them（）.

A.Directly in line with the bow
B.Side by side，with their lines on the port and starboard side
C.So that their lines form an angle
D.On top of one another


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1.單項選擇題Which statement is TRUE concerning equatorial tides（）.

A.They occur when the Sun is at minimum declination north or south
B.They occur when the Moon is at maximum declination north or south
C.The difference in height between consecutive high or low tides is at a minimum
D.They are used as the basis for the vulgar establishment of the port

2.單項選擇題Which statement is TRUE concerning apogean tides（）．

A.They occur only at quadrature
B.They occur when the Moon is nearest the Earth
C.They cause diurnal tides to become mixed
D.They have a decreased range from normal

4.單項選擇題Which current would you encounter on a direct passage from London，England，to Capetown，South Africa（）.

A.Falkland Current
B.Brazil Current
C.Norway Current
D.Benguela Current

5.單項選擇題Which current is responsible for the movement of icebergs into the North Atlantic shipping lanes（）.

A.Iceland Current
B.Baltic Current
C.Labrador Current
D.Baffin Current