阿摩線上測驗
12. What do we call a point of contact between the turning circle and the middle line of a
ship?
(A) Pitch point.
(B) Metacenter.
(C) Gravity center.
(D) Pivot point.
答案：登入後查看
統計： A(70), B(46), C(79), D(438), E(0) #3209677
統計： A(70), B(46), C(79), D(438), E(0) #3209677
