单项选择题

A. Social progress will have two main economic consequences.
B. Technological progress will have two main economic consequences.
C. Human progress will have two main economic consequences.
D. Equipment progress will have two main economic consequences.
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单项选择题
A. At the age of 50, individuals with high blood pressure can be at risk for heart disease. B. At the age of 35, individuals with high blood pressure can be at risk for heart disease. C. At the age of 45, individuals with high blood pressure can be at risk for heart disease. D. At the age of 40, individuals with high blood pressure can be at risk for heart disease.
A. At the age of 50, individuals with high blood pressure can be at risk for heart disease.
B. At the age of 35, individuals with high blood pressure can be at risk for heart disease.
C. At the age of 45, individuals with high blood pressure can be at risk for heart disease.
D. At the age of 40, individuals with high blood pressure can be at risk for heart disease.
单项选择题
A. Those who want to win in a horse race. B. Those who are retired and are still taking part in competitions. C. Those who always take part in competitions during their spare time. D. Those who take part in all sorts of competitions with great enthusiasm.
A. Those who want to win in a horse race.
B. Those who are retired and are still taking part in competitions.
C. Those who always take part in competitions during their spare time.
D. Those who take part in all sorts of competitions with great enthusiasm.
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