According to the lecture, what is inflation?

A． Rising prices.

B． Fixed income.

C． Real income.

D． Cost of living.

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1 Who benefits most from inflation?

A． Persons who have salaries according to long-term contracts.

B． Persons who own businesses.

C． Persons with old-age pensions.

D． Persons with slow-rising incomes.

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2 What does the speaker mainly discuss?

A． The distribution of different species of amphibians.

B． Possible reasons for reduction in the number of amphibians.

C． The effects of environmental change on the fish industry.

D． Guidelines for the responsible use of pesticides.

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3 According to the speaker, how do developers contribute to the reduction of amphibian population?

A．By taking over ponds.

B． By constructing sewers.

C． By building dams on rivers.

D． By flooding marshes.

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