托福考试

【单选题】Listening 8 "Environmental ScienceClass"
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What is the professor’s attitude toward fuel cells
A、He thinks that the technology is not very efficient.
B、He is hopeful about their development in the future.
C、He is doubtful that fuel cells will replace fossil fuels.
D、He is discouraged because of the delays in production.
网考网参考答案：B
网考网解析：
He is hopeful about their development in the future. He would like more attention to be directed to public information programs, which would solve one of the major problems for fuel cell technology. document.getElementById("warp").style.display="none"; document.getElementById("content").style.display="block"; 查看试题解析出处>>