1. (2021高二上·浙江月考) 听材料，回答问题。

1. （1） How many safety meetings will the employees have every week?

   A . One. B . Two. C . Three.
3. （2） What are the employees allowed to wear in the lab?

   A . Sports shoes. B . Loose belts. C . Necklaces.
5. （3） Why should the employees wash their hands?

   A . To avoid bacteria. B . To preserve new equipment. C . To make equipment look clean.
7. （4） What does the speaker mainly talk about?

   A . Work the employees will do. B . Salaries the employees will receive. C . Rules the employees should follow.