50. 下圖為船舶的何種艏部結構？
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(A)垂直艏(plumb bow)
(B)斜直艏(raked bow)
(C)梅爾型艏(Maier form bow)
(D)球型艏 (bulbous bow)

答案：登入後查看
統計： A(0), B(0), C(0), D(34), E(0) #2712925