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单选题
A tug is best positioned for towing and maneuvering on rivers and other restricted waters where wave action is limited when（）.
A
directly astern and pushing the tow
B
towing on a hawser
C
towing alongside and parallel to the vessel it is towing
D
towing on the hip
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A tug is best positioned for towing and maneuvering on rivers and other restricted waters where wave action is limited when ______.A.directly astern and pushing the towB.towing on a hawserC.towing alongside and parallel to the vessel it is towingD.towing on the hip
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单选题In astern towing，a tow span，also called the tow bar or towing arch，is used to（）.A
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考题
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trim the tow by the bowB
trim the tow by the sternC
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adjust the length of the towing bridle
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