Listening Quiz: Nộp Dữ Liệu Chất Thải Lên Cơ Sở Dữ Liệu Quốc Gia – Advanced Level

1. What are Laura and David mainly discussing?
2. What did David use to format the data correctly?
3. What did Laura tell David to do after submission?
4. Why did David say he had not uploaded the data yet?
5. What will David most likely do next?

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