In this section, you will hear several news items.
Listen to them carefully and then answer the questions that
follow. Questions 21 to 23 are based
on the following news. At the end of the news item, you will be given 10 seconds
to answer the questions. Now, listen to the
news. The Japanese bullet trains ______.
A．can run faster than 300 kilometers an hour B．run more smoothly C．are more costly D．are much more beautiful