What would most likely prevent a SART’s signal from being detected?（）<br>A:Signal absorption by the ionosphere<br>B:Heavy sea swells<br>C:The rescue personnel were monitoring the 10-cm radar<br>D:The rescue personnel were monitoring the 3-cm radar

What would most likely prevent a SART’s signal from being detected?（）
A:Signal absorption by the ionosphere
B:Heavy sea swells
C:The rescue personnel were monitoring the 10-cm radar
D:The rescue personnel were monitoring the 3-cm radar

出自：海船船员证

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