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單項(xiàng)選擇題

Place names used should be those （）.

A.specified by international authorities
B.specified by national authorities
C.on standard map
D.on the chart or Sailing Directions in use

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單項(xiàng)選擇題

Pilot ladder is （） on port side．

A.equipped
B.rigged
C.put on
D.put off

單項(xiàng)選擇題

Passage through the Suez Canal is operated on a （） system．

A.convey
B.convoy
C.escort
D.conform

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