1. (2023高二上·吉州期末) 听录音，回答问题。

1. （1） What is the speaker?

   A . A researcher. B . A reporter. C . An official.
3. （2） How many pilots were surveyed?

   A . 200. B . 300. C . 500.
5. （3） What are the air rule changes proposed by the European governments?

   A . Lengthening the working hours of the pilots. B . Punishing the pilots sleeping during work. C . Shortening the pilots' night flying time.
7. （4） How do most people find the changes?

   A . Wise. B . Useless. C . Unscientific.