单选题
Manufacturers of everything from running shoes to
deodorants, a substance to remove unpleasant odors, design products specifically
for women. One of the latest entries: the first artificial joint created for-and
heavily advertised to-females. Doctors say it's too soon to tell whether the
Gender Knee represents a giant leap for womankind or if it gives its maker,
Zimmer Holdings Inc., a leg up in the market. In the case of
the knees, according to Zimmer, here's how men and women are different: First,
the kneecap, is thinner in women. Also, women's wider hips create a different
angle between the knee and pelvis-the wide, curved group of bones at the level
of hips, which can mean the kneecap gets pulled to the side when the muscles
contract. And the end of the thighbone is typically narrower in men. Most
artificial knees were modeled on the male anatomy-which may explain why knee
replacements in women aren't as successful when measured by reported pain and
do-over rates. But will the new (and more expensive)
replacement actually serve women better? "In theory, yes, but the evidence
isn't there," says Kimberly Templeton, an associate professor of orthopedic
surgery (prevention or correction of disorders of the bones and associated
muscles and joints) at the University of Kansas Medical Center and a
spokesperson for the American Academy of Orthopedic Surgeons. Sheryl
Conley, Zimmer's chief marketing officer, says seven studies
now underway will look at patient satisfaction and range of motion.
Preliminary data will be available in a year or so. Anatomical differences
aside, Templeton says, replacement knees may not perform well in women in part
because females tend to delay surgery-sometimes until they're bound to the house
by disability. In addition, it's not clear that the
manufacturer's specialized design will translate to less pain, says Steven Haas,
an orthopedic surgeon and chief of the knee service at the Hospital for Special
Surgery in New York. For example, making the front of the replacement knee
thinner by one twenty-fifth of an inch won't necessarily make a noticeable
difference to recipients. Having a correctly fitted device is clearly important,
says Haas, who notes that other companies have modified their smaller knees to
account for gender differences in anatomy. (Haas has consulted with Smith &
Nephew, a rival to Zimmer.) More important, says Haas, is to
find a skillful surgeon. Differences between implants, he argues, are relatively
minor compared to the technique of the surgeon putting them in.
单选题
What can we learn from the first paragraph?
A. A lot of products are designed and manufactured specifically for
men.
B. It is unclear whether the Gender Knee will help its maker more
successful.
C. It is clear that the Gender Knee will make its maker suffer great
losses.
D. It is clear that the first artificial joint created for females
represents a giant leap.
【正确答案】
B
【答案解析】
单选题
According to Paragraph 2, knee replacements in women haven't 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.
【正确答案】
C
【答案解析】
单选题
To which of the following statements would Kimberly Templeton most
likely agree?
A. The new knee replacement will serve women better clinically.
B. The underperformance of replacement knees may be found in women.
C. Women sometimes may refuse to receive the knee replacement surgery.
D. The replacement knees make a good performance in women.
【正确答案】
B
【答案解析】
单选题
The example of the change of replacement knee cited in Paragraph 4
shows that
A. the new replacement knee may or may not relieve the pain.
B. the front of replacement knee will be made thinner a little bit.
C. the change of replacement knee won't bring changes to the
recipients.
D. the new replacement knee is of great importance to the
recipients.
【正确答案】
A
【答案解析】
单选题
Which of the following is the best title for this text?
A. The Difference of Men and Women in Knees
B. The Importance of the Technique of the Knee Surgeon