問題詳情

4. According to paragraph 3, how did scientists determine that a large meteorite had impactedEarth?
(A) They discovered a large crater in the Yucatán region of Mexico.
(B) They found a unique layer of sediment worldwid
(E)
(C) They were alerted by archaeologists who had been excavating in the Yucatán region.
(D) They located a meteorite with a mass of over a trillion tons.

參考答案

答案:B
難度:非常困難0
統計:A(0),B(0),C(0),D(1),E(0)

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