[填空题]A. subtle B. mental C. extremely D. effective
E. examine F. range G. accomplish H) ultimately
I) images J) provide K) otherwise L) difference
M) side-effects N) optical O) confirmed

Promise of Genetic Treatments

Many fields of science stand to gain from the ongoing analysis of the human genome (染色体基因), but none more so biomedicine. The research promises new treatments for a huge (47) of diseases, all of which must have some genetic component. It could (48) answer questions about the nature of life itself. It could also answer riddles about addictions such as gambling, or (49) treatments for jet-lag, or sleep disorders or (50) illness.
Computer search engines are already mining the genome for candidate disease genes— more than 40 have been found already and hundreds of mor

[填空题]A. subtle B. mental C. extremely D. effective
E. examine F. range G. accomplish H) ultimately
I) images J) provide K) otherwise L) difference
M) side-effects N) optical O) confirmed

Many fields of science stand to gain from the ongoing analysis of the human genome (染色体基因), but none more so biomedicine. The research promises new treatments for a huge (47) of diseases, all of which must have some genetic component. It could (48) answer questions about the nature of life itself. It could also answer riddles about addictions such as gambling, or (49) treatments for jet-lag, or sleep disorders or (50) illness.
Computer search engines are already mining the genome for candidate disease genes— more than 40 have been found already and hundreds of mor

[单项选择]1. Mental Retardation
Mental retardation is a condition in which people have lower than normal intelligence and are unable to function at the level expected for their age. People with mental retardation are usually born with it, or it develops early in their life. They may also have some difficulty with dally living skills such as learning to read and write and caring for themselves.
Doctors and other professionals determine that a person has mental retardation based on their intelligence and how well they can do everyday activities. Intelligence is the ability to learn and understand. Levels of intelligence are measured by special tests called intelligence tests. The score a person gets on one of these tests gives a numerical measure of a person’ s intelligence. This is called an intelligence quotient or IQ.
An average score on an IQ test is about 90 to 110. A person with mental retardation will usually score below 75 on an IQ test.
The IQ test alone does not deter
A. Right
B. Wrong
C. Not mentioned

[单项选择]

Mental Retardation (智力迟钝)
Mental retardation is a condition in which people have lower than normal intelligence and are unable to function at the level expected for their age. People with mental retardation are usually born with it, or it develops early in their life. They may also have some difficulty with daily living skills such as learning to read and write and caring for themselves.
Doctors and other professionals determine that a person has mental retardation based on their intelligence and how well they can do everyday activities. Intelligence is the ability to learn and understand Levels of intelligence are measured by special tests called intelligence tests. The score a person gets on one of these tests gives a numerical (数字的) measure of a person’s intelligence. This is called an intelligence quotient (智商) or IQ.
An average score on an IQ test is about 90 to 110. a person with mental retardation will usually score below 75 on an IQ te
A. It is not curable.
B. Its victims are usually born with it.
C. Its causes are not fully identified yet.
D. It can spread among family members.