單項(xiàng)選擇題船臺DSC設(shè)備收到遇險(xiǎn)報(bào)警時(shí),應(yīng)該()。①應(yīng)立即用DSC設(shè)備給予確認(rèn);②應(yīng)推遲片刻,以便讓岸臺給予遇險(xiǎn)應(yīng)答,并在相應(yīng)R/T遇險(xiǎn)頻率上守聽;③若3min無岸臺應(yīng)答,船臺應(yīng)要相應(yīng)的R/T遇險(xiǎn)頻率上給遇險(xiǎn)船應(yīng)答;④若用無線電話給遇險(xiǎn)船應(yīng)答無效,并連續(xù)收到DSC報(bào)警,且3min無岸臺應(yīng)答,船臺應(yīng)直接用DSC給予確認(rèn),然后向RCC進(jìn)行遇險(xiǎn)轉(zhuǎn)發(fā);⑤在HF上收到遇險(xiǎn)報(bào)警時(shí),可立即直接轉(zhuǎn)發(fā)給RCC

A.①⑤
B.②④⑤
C.①④
D.②③④


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8.單項(xiàng)選擇題DSCMF/HF值班接收機(jī)必須自動(dòng)掃描接收().

A.2187.5KHz/156.525KHz
B.8414.5KHz/156.525MHz
C.2187.5/8414.5KHz
D.2187.5/8414.5/156.525MHz