阿摩線上測驗
43.Which of the following is NOT mentioned in the above passage?
(A) Biofuels are renewable, so they are much less costly.
(B) Petroleum fuels produce more toxic waste than biofuels.
(C) Many people worry about the harmful effects of chemistry industry.
(D) Green chemistry may reduce the use of petroleum.
答案：登入後查看
統計： A(1426), B(214), C(169), D(225), E(0) #546801
統計： A(1426), B(214), C(169), D(225), E(0) #546801
