阿摩線上測驗
19.As the population grows, more people will need electricity for homes, schools, hospitals, and transportation, so the ________ of energy will increase.
(A) distribution
(B) supply
(C) potential
(D) demand
答案：登入後查看
統計： A(0), B(1), C(0), D(3), E(0) #3919529
統計： A(0), B(1), C(0), D(3), E(0) #3919529
