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  3. The assumption that the tropical ecosystem of Amazonia has been created solely b

The assumption that the tropical ecosystem of Amazonia has been created solely b

游客2025-02-17  9
问题 The assumption that the tropical ecosystem of Amazonia has been created solely by natural forces
选项 A、has often been questioned by ecologists in the past.
B、has been shown to be incorrect by recent research.
C、was made by Peter Feinsinger and other ecologists.
D、has led to some fruitful discoveries.
答案 B // has been shown to be incorrect by recent research
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