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.
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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.
By citing the example of computer maker Hewlett-Packard, the author intends to show that
A. effort has been made by the digital industry to save energy.
B. virtualization could help the company to save energy.
C. HP has managed to consolidate 86 data centers to just three.
D. HP has employed software to create multiple "virtual" computers.
Participants who are told they will be given their scores earlier
A. underperform. those who are told later.
B. perform. worse than they predict.
C. are least optimistic at making prediction.
D. seldom earn the marks they predict.
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