Required lifesaving equipment on existing vessels may becontinued in use on the vessel if（）.<br>A:kept on board no more than 2 years<br>B:inspected and serviced every 6 months<br>C:destroyed if more than 5 years old<br>D:maintained in good and serviceable condition

Required lifesaving equipment on existing vessels may becontinued in use on the vessel if（）.
A:kept on board no more than 2 years
B:inspected and serviced every 6 months
C:destroyed if more than 5 years old
D:maintained in good and serviceable condition

出自：海船船员证

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