【已刪除】56. This reading is mainly about ______. ((((((((((((((((((((
(A) the history of vending machines
(B) the advantages of vending machines ((((((((((((((((((((
(C) the invention of vending machines
(D) All of the above

答案:登入後查看
統計: A(2), B(1), C(2), D(5), E(0) #965483