Which of following physical abilities is not required as to the routine movement around a vessel?（）<br>A:Maintain balance and move with agility<br>B:Climb up and down vertical ladders and stairways<br>C:Open and close watertight doors<br>D:Take part in vessel evacuation procedures

Which of following physical abilities is not required as to the routine movement around a vessel?（）
A:Maintain balance and move with agility
B:Climb up and down vertical ladders and stairways
C:Open and close watertight doors
D:Take part in vessel evacuation procedures

出自：海船船员证

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