32.下列何者為「礙航物〈如沉船、漁網等礙航物會阻塞航道、航路等〉」之英文術語？
(A)Obstruction
(B)Obstructionism
(C)Obstructionist
(D)Object

答案：登入後查看
統計： A(3), B(0), C(2), D(4), E(0) #2401388