阿摩線上測驗
39. Which of the following aspects about hard hats is NOT discussed in the passage?
(A) Their functions.
(B) Their appearances.
(C) Their materials.
(D) Their limitations.
答案：登入後查看
統計： A(24), B(29), C(22), D(177), E(0) #2857096
統計： A(24), B(29), C(22), D(177), E(0) #2857096
