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【判断题】
原子吸收仪器和其他分光光度计一样，具有相同的内外光路结构，遵守一比耳定律。( )A.
正确
B.
错误
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举一反三
【单选题】With respect to how economists study the economy, which of the following statements is most accurate?
A.
Economists study the past, but they do not try to predict the future.
B.
Economists use “rules of thumb” to predict the future.
C.
Economists devise theories, collect data, and analyze the data to test the theories.
D.
Economists use controlled experiments in much the same way that biologists and physicists do.
【简答题】Most economists acknowledge this trading system as one of the greatest contributors to the world's rapid recovery from the desolation of the Second World War.
【单选题】For most practical matters, economists assume that
A.
individuals are risk averse.
B.
individuals are risk lovers.
C.
individuals are risk neutral.
D.
most individuals are risk lovers.
【单选题】Most economists argue that automation will increase incomes if______.
A.
new jobs are created
B.
productive force is boosted
C.
machine replaces human labour
D.
demand for new products is generated
【单选题】Many economists, business and labor leaders and politicians believe that
A.
most of the explosive growth in service employment is not in low-paying jobs
B.
most of the fast growth in the service sector is in low-paying jobs
C.
manufacturing jobs are disappearing because they are no longer attractive
D.
most of the fast growth in the service sector is in high-paying jobs
【单选题】Who will be most interested in this article?
A.
Economists.
B.
Retailers.
C.
Marketing managers.
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