阿摩線上測驗
71. When Air Quality Index (AQI) above 300, that means the air quality is hazardous to
human being. What color is used to represent the hazardous level air quality？
(A) orange
(B) red
(C) purple
(D) brown
答案：登入後查看
統計： A(1), B(7), C(26), D(45), E(0) #2319635
統計： A(1), B(7), C(26), D(45), E(0) #2319635
