Questions 14 to 17 are based on the
following passage. At the end of the passage, you will be given 20 seconds to
answer the questions. Now listen to the
passage.
According to the speaker what do people often think about astronomers
A．They spend most of their time looking through telescopes. B．They are constantly analyzing data. C．They often live near observatories. D．They devote a lot of time to theoretical problems.