Your ARPA has two guard zones.What is the purpose of the inner guard zone（）.

A . Alert the watch officer that a vessel is approaching the preset CPA limit B . Warn of small targets that are initially detected closer than the outer guard zone C . Guard against target loss during critical maneuvering situations D . Sound an alarm for targets first detected within the zone

时间：2022-10-02 12:18:45 所属题库：雷达及ARPA的使用题库

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