单选题Attention is called to the fact in many cases pipelines are not buried and charted depth may be decreased（）up to teo meters.AwithBbyConDin
单选题
Attention is called to the fact in many cases pipelines are not buried and charted depth may be decreased（）up to teo meters.
A
with
B
by
C
on
D
in
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单选题Attention is called to the fact that in many cases pipelines are not （） and charted depths may be decreased by up to 2 meters．AconcealedBburiedCexistedDbuilt
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单选题Attention is called to the fact that in many cases charted depths may be decreased by up to （）.Aone nautical mileBtwo kilometersC5 cables onlyDone fathom
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