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Câu hỏi:
What is today’s richest source of information about the Earth’s interior for geologists?
- A. Boreholes
- B. Shells
- C. Seismic waves
- D. Mines
Lời giải tham khảo:
Đáp án đúng: C
Đáp án C
Thông tin ở câu cuối đoạn 1: Most of our knowledge of the Earth's interior comes not from mines or boreholes, but from the study of seismic waves - powerful pulses of energy released by earthquakes: Hầu hết kiến thức của chúng ta về bên trong Trái Đất không đến từ các mỏ, giếng khoan, nhưng từ việc nghiên cứu các sóng địa chấn - các xung mạnh mẽ của năng lượng được giải phóng bởi động đất.
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