单选题While moving ahead,a twin-screw ship has an advantage over a single-screw ship because ().Acorrect trim will be obtained more easilyBdrag effect will be cancelled outCside forces will be eliminatedDspeed will be increased
单选题
While moving ahead,a twin-screw ship has an advantage over a single-screw ship because ().
A
correct trim will be obtained more easily
B
drag effect will be cancelled out
C
side forces will be eliminated
D
speed will be increased
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