Questions 3 and 4 are based on the news report you have just heard.
3. A) Finding cheaper ways of highway construction.
B) Generating electric power for passing vehicles.
C) Providing clean energy to five million people.
D) Testing the efficiency of the new solar panel.
4. A) They can stand the wear and tear of natural elements.
B) They can be laid right on top of existing highways.
C) They are only about half an inch thick.
D) They are made from cheap materials.
2017年12月大学英语四级考试听力（第一套） 新闻题（2）
2017年12月大学英语四级考试听力（第一套） 新闻题（2）
2017年12月大学英语四级考试听力（第一套） 新闻题（2）
网友评论