阿摩線上測驗
15.aPlastic has become extraordinarily important in our daily life, but the process of burning or recycling it often creates ____________ chemicals.
(A) toxic
(B) interior
(C) prestigious
(D) radical
答案：登入後查看
統計： A(62), B(18), C(10), D(10), E(0) #1203601
統計： A(62), B(18), C(10), D(10), E(0) #1203601
