单选题 What might "common knowledge" say about smokers and nonsmokers?
A、Smokers eat less and exercise less than nonsmokers.
B、Smokers eat less and exercise more than nonsmokers.
C、Smokers eat more and exercise less than nonsmokers.
D、Smokers eat more and exercise more than nonsmokers.
单选题 What can be inferred from the development of mass communications?
A、People are constantly changing their customs and ideas.
B、People always want something new and remarkable to feel better.
C、Governments are often forced to keep up with new customs and ideas.
D、Governments are under greater pressure to bring about new inventions.
单选题 What can governments do to promote production?
A、Utilize natural resources to the best of their advantage.
B、Change the structure of education to train more scientists.
C、Ask scientists and technologists to improve efficiency.
D、Interfere in different sectors that can promote science and technology to ensure smooth operation.
单选题 The word "subjects" in the fourth paragraph means __________.
A、researchers
B、addicted smokers
C、people under medical treatment
D、people undergoing an experiment
单选题 When might nicotine influence smokers' weight significantly?
A、While smokers are at rest.
B、While smokers are exercising.
C、When Nicotine's metabolic effects and metabolic rates increase at the same rate.
D、When Nicotine 's metabolic effects increase proportionally with the amount of light activity.
单选题 What is believed to directly affect the welfare of people according to the passage?
A、The help of specialized scientists.
B、Varying measures of centralized control.
C、Economists and operational research experts.
D、The economic strength and wealth of the community.
单选题 According to the passage, what has posed problems for the governments concerned?
A、Social changes throughout the world are speeding up compared with the past.
B、Social change is taking place at a steady speed.
C、The rate of social change in early industrialized countries is slowing.
D、Far-reaching changes in social patterns can be spread over a developing country within a decade.
单选题 Why are governments becoming increasingly dependent on biologists and social scientists?
A、Because they need to handle social stresses and problems.
B、Because they want to learn from early industrialized countries.
C、Because they have to make modern means of transport relatively easy.
D、Because they need them for the industrialization of their own countries.
2026-01-11
共90道
