问题
单项选择题
（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.
A.Half length
B.Mid-body
C.Center line
D.Amidships
答案
参考答案：D
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（）is halfway between the forward and after perpendiculars and is reference point for vessel construction.
A.Half length
B.Mid-body
C.Center line
D.Amidships
参考答案：D