❓ 题目 According to the passage, which of the following is a reason why some scientists oppose the formal recognition of the Anthropocene?
- A. A. The markers of the Great Acceleration are not preserved in ice cores.
- B. B. Human-induced changes may not be stratigraphically distinct from natural events.
- C. C. The concept ignores the role of nuclear testing in the mid-20th century.
- D. D. The start date of the Anthropocene has been universally agreed upon as the 1950s.