A study that measured everyday physical activity of community-dwelling older people between the ages of 80 and 98 found that people who were Blank ______.单项选择题

A

moderately or extremely active were much less likely to have died than those who were sedentary

B

sedentary were much less likely to have died than those who were occasionally active

C

occasionally active were much less likely to have died than those who were moderately or extremely active

D

sedentary were much less likely to have died than those who were moderately or extremely active

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Section D  Read this paragraph and answer the two questions below. Fluoride, a mineral that helps prevent tooth decay, is added to drinking water and dental products in many countries. Fluoridated water has been widely used to prevent dental cavities, but it remains a topic of debate. While research shows that fluoride in drinking water significantly reduces the incidence of tooth decay, there are concerns about potential health risks, such as the risk of damage to teeth from excessive fluoride. Ethical issues also arise, as some believe that adding fluoride to public water supplies infringes on individual rights by imposing a medical treatment without consent. Despite these concerns, many health organizations maintain that the benefits of water fluoridation outweigh the risks, citing its effectiveness in improving dental health. While some countries such as the United States and Australia have successful water fluoridation programs, others, such as Germany and Sweden do not fluoridate their water, relying instead on alternative dental health measures. The debate over fluoridation continues as communities weigh its benefits against potential health and ethical concerns. Questions 10-11. Choose A, B, C or D as the best answer. 10. Which of the following is NOT an argument against water fluoridation?

Which of the following is the leading cause of preventable death in the United States?

Which is a characteristic of the U.S. government's Healthy People reports?

Recent declines in life expectancy have been linked to increased rates of which of the following?

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