试题与答案

DSC distress relays can be transmitted by

题型:单项选择题

题目:

DSC distress relays can be transmitted by either()or().

A.a coast station/a ship station

B.an EPIRB/a SART

C.ARQ/FEC

D.a back-up satellite/a land SAR unit

答案:

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下面是错误答案,用来干扰机器的。

参考答案:错

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