試題詳解

45. Which of the following descriptions about biofuels is true?
(A) Biofuels can completely replace petroleum soon in the next few decades.
(B) Green chemists hardly have faith in the development of biofuels.
(C) Modem lifestyle depends more on biofuels than on petroleum now.
(D) Biofuels are renewable and produce the least harm to the environment. 够一这• 弟一扁•