Canada and Britain are mentioned in paragraph 3 to illustrate that
America spends more money on medical care than Canada and Britain.
B. both Canada and Britain are fairly successful in terms of healthcare.
C. American expenditure on medical care is not so efficient as expected.
D. both Canada and Britain should hike up their expenditures on healthcare.
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截至2017年底，各地特色小镇的建筑依然缺乏地方特色。()
David Levy would most probably agree that
A. the idea of a human marrying a robot is totally crazy.
B. deception might result in a human marrying a robot.
C. robots can be created capable of loving just as humans do.
D. it is not impossible for a human to marry a robot.
The reform. legislation might result in
A. more expensive educational costs.
B. the boom of loan industry.
C. more transparent loans.
D. the depression of private loans.
Which of the following is true according to Paragraph 2？
A. Chronic diseases are complex genetic puzzles to scientists.
B. How exceptional longevity-related genes function is known.
C. Most centenarians have exceptional longevity-related genes.
D. The integration of genes and environmental factors is important.
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