阿摩線上測驗
6. European heat is becoming both more severe _____ more frequent.
(A) but
(B) and
(C) or
(D) nor
答案：登入後查看
統計： A(0), B(31), C(1), D(2), E(0) #4017204
統計： A(0), B(31), C(1), D(2), E(0) #4017204
