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Positively charged ions can influence eating habits.

A. 真
B. 假
C. NOT GIVEN

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

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.

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There is a crucial popular misconception about the human history of Amazonia.

A. YES
B. NO
C. NOT GIVEN

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Traditional societies are highly inventive in terms of technology.

A. 真
B. 假
C. NOT GIVEN

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There are lessons to be learned from similar ecosystems in other parts of the world.

A. YES
B. NO
C. NOT GIVEN

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Positively charged ions can influence eating habits.

A. 真 B. 假 C. NOT GIVEN

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

There is a crucial popular misconception about the human history of Amazonia.

Traditional societies are highly inventive in terms of technology.

There are lessons to be learned from similar ecosystems in other parts of the world.

A. 真
B. 假
C. NOT GIVEN