單項(xiàng)選擇題（）the time of collision，the 3rd officer was on the bridge．

A.At
B.On
C.Of
D.In


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1.單項(xiàng)選擇題（）the ship leaves at 1000 today，she can arrive there tomorrow.

A.When
B.How
C.If
D.Should

2.單項(xiàng)選擇題（）the packing is the same，the lots are different in marks.

A.For
B.Since
C.Because
D.Although

3.單項(xiàng)選擇題（）the morning from 0800 to 1200 Chief Officer is on duty.

A.On
B.In
C.At
D.During

4.單項(xiàng)選擇題（）should you do first when heaving up the anchor.

A.Engage the wildcat
B.Release the brake
C.Release the pawl
D.Engage the motor

5.單項(xiàng)選擇題（）ready for mooring.

A.Do
B.Have
C.Make
D.Get