Its implied in the first paragraph that the reasons for obesity include overeating and
A. lacking exercise.
B. absorbing fats.
C. keeping unhealthy diets.
D. burning calories.
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The national security simulation in 2002 shows that
A. nuclear plants should be best protected.
B. nuclear radiation would be much less and not so serious.
C. nuclear safety and security standards would be the strictest.
D. nuclear technology should be highly advanced and sophisticated.
According to Paragraph 2, knee replacements in women havent achieved great success in that
A. women have thinner kneecap or patella than that of men.
B. women"s wider hips make the artificial knee pulled to the side.
C. artificial knees are designed based on the features of men"s body.
D. women have wider end of the thighbone than that of men.
换药法的预期目标有保持伤口清洁干燥，____，促进伤口早期愈合。
According to the author, the "one-click" patent and the "name-your-price" patent are
A. comical.
B. shocking.
C. absurd.
D. unreasonable.
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