Listening Quiz: Lời Khuyên Về Kiểm Tra Lắp Đặt Nồi Hơi – Advanced Level

1. What is the conversation mainly about?
2. How often should the boiler inspection usually be done?
3. Who must perform the boiler inspection?
4. What is one likely reason Emily emphasizes safety during the inspection?
5. What does the inspection report include?

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