In paragraphs 1 and 2, the text shows PTK’s _____.
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1 .Wilt Chamberlain is cited as an example to _____.
A illustrate the change of height of NBA players B show the popularity of NBA players in the U.S. C compare different generations of NBA players D assess the achievements of famous NBA players
2 .Which of the following plays a key role in body growth according to the text?
A Genetic modification. B Natural environment. C Living standards. D Daily exercise.
3 .On which of the following statements would the author most probably agree?
A Non-Americans add to the average height of the nation. B Human height is conditioned by the upright posture. C Americans are the tallest on average in the world. D Larger babies tend to become taller in adulthood.
4 .We learn from the last paragraph that in the near future _____.
A the garment industry will reconsider the uniform size B the design of military uniforms will remain unchanged C genetic testing will be employed in selecting sportsmen D the existing data of human height will still be applicable
5 .The text intends to tell us that _____.
A the change of human height follows a cyclic pattern B human height is becoming even more predictable C Americans have reached their genetic growth limit D the genetic pattern of Americans has altered
7 .PTK is used to _____.
A locate one’s birth place B promote genetic research C identify parent-child kinship D choose children for adoption
8 .Skeptical observers believe that ancestry testing fails to _____.
A trace distant ancestors B rebuild reliable bloodlines C fully use genetic information D achieve the claimed accuracy
9 .In the last paragraph, a problem commercial genetic testing faces is _____.
A disorganized data collection B overlapping database building C excessive sample comparison D lack of patent evaluation
10 .An appropriate title for the text is most likely to be _____.
A Fors and Againsts of DNA testing B DNA testing and Its problems C DNA testing outside the lab D lies behind DNA testing
