填空题

Questions 7 and 8 are based on the following news. At the end of the news item, you will be given 10 seconds to answer each of the two questions. Now listen to the news.
Which of the following is TRUE about the comet Tempel
A. Its surface temperature is above zero. B. It’s a big solid ball.
C. It’s gaseous. D. It was formed 4.5 billion years ago.

【参考答案】

B