单项选择题

At 0900，you take the following radar ranges: Watch Hill Point 5.4 miles; Block Island Grace Point 8.3 miles. Which statement is TRUE? （）

A.You are within 3 nautical miles of the coast
B.The bottom in the area is sand and gravel
C.The fix is indeterminate
D.You are governed by the Inland Rules

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A passenger vessel is underway. When may passengers visit the pilothouse? （）

A.Passengers are excluded from the pilothouse while underway
B.Passengers are permitted in the pilothouse during daylight hours only
C.Passengers are permitted to visit the pilothouse when authorized by the Master and officer of the watch
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During a storm，the chance of fatigue failure of a mooring line will increase as（）.

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A.say
B.talk
C.tell
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