阿摩線上測驗
2. As the planet’s energy needs grow, we must _______the use of our limited resources and at the same time
minimize their environmental impact.
(A) optimize
(B) opaque
(C) operate
(D) oppose
答案：登入後查看
統計： A(298), B(45), C(103), D(32), E(0) #944249
統計： A(298), B(45), C(103), D(32), E(0) #944249
