When steering by autopilot,how often should the steering be checked?（）<br>A:12 times on each watch<br>B:When time allows<br>C:At least once a watch<br>D:No checking is necessary

When steering by autopilot,how often should the steering be checked?（）
A:12 times on each watch
B:When time allows
C:At least once a watch
D:No checking is necessary

出自：海船船员证

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