Listening Quiz: Phản Hồi Phản Đối Về Bước Sáng Tạo – Easy Level

1. What are Jessica and Mark mainly discussing?
2. According to Mark, what does the new design do?
3. By how much does the new method increase efficiency?
4. What can be inferred about the invention based on the conversation?
5. What will Jessica and Mark do next?

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