單項(xiàng)選擇題A single line of position combined with a dead-reckoning position results in a(n)（）.

A.running fix
B.fix
C.estimated position
D.assumed position


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1.單項(xiàng)選擇題A relative bearing is always measured from（）.

A.true north
B.magnetic north
C.the vessel's beam
D.the vessel's head

2.單項(xiàng)選擇題A position that is obtained by using two or more intersecting lines of position，taken at nearly the same time，is a(n)（）.

A.estimated position
B.fix
C.running fix
D.dead-reckoning position

3.單項(xiàng)選擇題A position that is obtained by applying estimated current and wind to your vessel’s course and speed is a(n)（）.

A.dead reckoning position
B.estimated position
C.fix
D.None of the above

4.單項(xiàng)選擇題A position obtained by crossing lines of position taken at different times and advanced to a common time is a(n)（）.

A.running fix
B.dead-reckoning position
C.fix
D.estimated position

5.單項(xiàng)選擇題A position obtained by applying only your vessel’s course and speed to a known position is a （）.

A.dead-reckoning position
B.fix
C.probable position
D.running fix