Attention is called to the fact that in many cases charted depths may be decreased by up to （）.<br>A:one nautical mile<br>B:two kilometers<br>C:5 cables only<br>D:one fathom

Attention is called to the fact that in many cases charted depths may be decreased by up to （）.
A:one nautical mile
B:two kilometers
C:5 cables only
D:one fathom

出自：海船船员证

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