单项选择题
A.which B.where C.what D.who
Place names used should be those （）.A.specified by inte...
单项选择题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
Pilot ladder is （） on port side．A.equippedB.riggedC.put...
单项选择题Pilot ladder is （） on port side．
A.equipped B.rigged C.put on D.put off
Passage through the Suez Canal is operated on a （） syst...
单项选择题Passage through the Suez Canal is operated on a （） system．
A.convey B.convoy C.escort D.conform
