阿摩線上測驗
2. Ruby loves learning about numbers, so she wanted to _____ in math at university.
(A) fill
(B) drop
(C) major
(D) break
答案：登入後查看
統計： A(6), B(14), C(241), D(3), E(0) #3426211
統計： A(6), B(14), C(241), D(3), E(0) #3426211
