Which statement concerning the navigation of a vessel in ice is FALSE?（）<br>A:Anchoring in the presence of ice is not recommended except in an emergency<br>B:Towing a vessel through an ice field is not recommended except in an emergency<br>C:The "Free and Proceed" system of escorting a beset vessel cuts down on the number of freeing operations<br>D:When anchoring in ice，it is advisable to increase the scope of the chain over what is normally used for non-icing conditions

Which statement concerning the navigation of a vessel in ice is FALSE?（）
A:Anchoring in the presence of ice is not recommended except in an emergency
B:Towing a vessel through an ice field is not recommended except in an emergency
C:The "Free and Proceed" system of escorting a beset vessel cuts down on the number of freeing operations
D:When anchoring in ice，it is advisable to increase the scope of the chain over what is normally used for non-icing conditions

出自：海船船员证

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