单选

Which of the following statements is TRUE regarding automatic identification systems(AIS)().

A.AIS is designed to replace ARPA，maneuvering boards，and visualbearings as a means to ascertain the risk of collision
B.AIS provides near real-time information regarding another vessel's speed over ground and heading regardless of visibility
C.AIS will not provide information on another vessel if that vessel is indistinguishable in radar sea clutter
D.AIS can be relied upon as the sole means to determine course changes due to other AIS equipped traffic

试题出自试卷《航海英语大副模拟测试卷(1)》

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