單項選擇題From ()the mariner can understand the data of tide.

A.cargo plan
B.tide table
C.port list
D.sea pilot


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1.單項選擇題From () the mariner can know the data of tide.

A.the Sea Pilot
B.the Cargo Plan
C.the Tide Table
D.the Port List

3.單項選擇題ETA/PILOT REVERTING means () .

A.ETA pilot station has been given
B.ETA pilot station will be given afterwards
C.ETA pilot station was not given
D.ETA pilot station is given

4.單項選擇題Data relating to the direction and velocity of rotary tidal currents can be found in the ().

A.Mariner's Guide
B.Tidal Current Tables
C.Nautical Almanac
D.Tide Tables

5.單項選擇題Coral atolls,or a chain of islands at right angles to the radar beam,may show as a long line rather than as individual targets due to ().

A.the effects of beam width
B.limitations on range resolution
C.the pulse length of the radar
D.the multiple-target resolution factor