Before GMDSS, if the radio officer on board is serious ill,（）.<br>A:someone else will take his place<br>B:the captain will take charge of his work<br>C:nobody will be capable of doing his work<br>D:anyone else will use the radio equipment

Before GMDSS, if the radio officer on board is serious ill,（）.
A:someone else will take his place
B:the captain will take charge of his work
C:nobody will be capable of doing his work
D:anyone else will use the radio equipment

出自：海船船员证

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