阿摩線上測驗
766. According to ______, people spend, on average, 30 hours deleting spam every year.
(A) statistics
(B) mineral
(C) fatality
(D) psychology
答案：登入後查看
統計： A(95), B(5), C(8), D(16), E(0) #1592976
統計： A(95), B(5), C(8), D(16), E(0) #1592976
