Instructions to the crew in the use of all the ship’s lifesaving equipment shall be completed（）.<br>A:before sailing<br>B:within one week of sailing<br>C:in one month and repeated quarterly<br>D:within any two month period

Instructions to the crew in the use of all the ship’s lifesaving equipment shall be completed（）.
A:before sailing
B:within one week of sailing
C:in one month and repeated quarterly
D:within any two month period

出自：海船船员证

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