阿摩線上測驗
30. The purpose of “soft iron spheres” is use for:
(A) Automatic Identification System
(B) Radar range adjust
(C) Reefer container temperature monitor
(D) Magnetic compass error correction
答案：登入後查看
統計： A(30), B(42), C(66), D(452), E(0) #2051390
統計： A(30), B(42), C(66), D(452), E(0) #2051390
