单项选择题

A.specified by international authoritiesB.specified by ……

Place names used on board ships 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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单项选择题While steaming slowly in the harbor，no ship is （） to exceed the speed limited．

A.assumed
B.appreciated
C.promised
D.permitted