阿摩線上測驗
32 To signal for help, the officer fired a ________ into the night sky, alerting nearby vessels to their location.
(A) boarding ladder
(B) flare gun
(C) search light
(D) VHF radio
答案：登入後查看
統計： A(10), B(60), C(17), D(8), E(0) #3462286
統計： A(10), B(60), C(17), D(8), E(0) #3462286
