单项选择题
The heights and soundings of Admiralty chart are expressed（）in Fathoms（）in Meters．
A.either，or B.neither，nor C.another，nor D.other，or
单项选择题 （）is not contained in the NM Weekly.
单项选择题 （）are published for the correction of Admiralty Charts．
单项选择题 A chart has extensive corrections to be made to it. When these are made and the chart is again printed，the chart issue is a （）.
