Listening Quiz: Quy Trình Chuỗi Giám Hộ Cho Mẫu Môi Trường – Easy Level

1. What is the conversation mainly about?
2. What does Olivia say is the first step in the chain of custody?
3. Who signs the form at the beginning of the process?
4. Why does Olivia say the chain of custody is important?
5. What happens if the sample is moved to another person?

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