问题
单项选择题
Pitching is angular motion of the vessel about what axis?（）.
A.Longitudinal
B.Transverse
C.Vertical
D.Centerline
答案
参考答案：B
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Pitching is angular motion of the vessel about what axis?（）.
A.Longitudinal
B.Transverse
C.Vertical
D.Centerline
参考答案：B