A、have
B、have been
C、has
D、has been
更多“Several shoals（）reported to exist in the area south-west of the Brothers.”相关的问题
A、Thimble Shoal Main Channel or the South Auxiliary Channel B、Any of the channels but keep to the right hand side C、The South Auxiliary Channel D、Thimble Shoal Main Channel
A、a hard sand shoal marked with a light B、completely submerged at all stages of the tide C、surrounded by rocks awash at low water spring tides D、a small，low，sandy islet surrounded by shoal water
A、A.Stranding or grounding B、B.Striking upon rocks or shoals C、C.Collision between ships D、D.Fire
A、several hundreds English words B、hundreds of English words C、hundred of English words D、several hundred English words
A、The South Auxiliary Channel since your draft is less than 25 feet (7.6 meters)，and you are not a passenger vessel B、The South Auxiliary Channel or Thimble Shoal Channel，but you must remain on the right hand side of the main channel C、The North Auxiliary Channel since you are going to turn to a northerly heading near buoy "12" D、You are not permitted to use any of the channels，but must remain outside the buoyed channel line
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