Listening Quiz: Phân Tích Chi Phí Toàn Đời cho Hệ Thống Mặt Tiền – Advanced Level

1. Which facade option is more expensive at the start?
2. How long was the cost analysis period?
3. Which option requires less maintenance over time?
4. What can be inferred about the metal panel system overall?
5. What is the main purpose of the conversation?

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