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[主观题]

What Olshansky and his team member discovered shows thatA．it is possible for the average l

What Olshansky and his team member discovered shows that

A．it is possible for the average life span to increase to 120 years, if death rates are reduced.

B．the average human life span will increase a little, if the death rates are reduced.

C．the upper limits of life bears no relation with the change of death rates,

D．the average human life span will increase a lot, if no one died before reaching age 50.

提问人：网友keke52ni 发布时间：2022-01-07

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更多“What Olshansky and his team me…”相关的问题

第1题

Slowing Aging: Way to Fight Diseases in 21st CenturyA group of aging experts from the Unit

Slowing Aging: Way to Fight Diseases in 21st Century

A group of aging experts from the United States and the United Kingdom suggest that the best strategy for preventing and fighting a multitude of diseases is to focus on slowing the biological processes of aging.

"The traditional medical approach of attacking individual diseases—cancer, diabetes, heart disease, Alzheimer's disease(早老性痴呆病) and Parkinson's disease(帕金森氏病)—will soon become less effective if we do not determine how all of these diseases either interact or share common mechanisms with aging", says S. Jay Olshansky, professor of epidemiology at the University of Illinois at Chicago School of Public Health and senior author of the commentary.

Middle-aged and older people are most often impacted by simultaneous but independent medical conditions. A cure for any of the major fatal diseases would have only a marginal impact on life expectancy(预期寿命) and the length of healthy life, Olshansky said. The authors suggest that a new paradigm(模式) of health promotion and disease prevention could produce unprecedented social, economic and health dividends for current and future generations if the aging population is provided with extended years of healthy life.

They note that all living things, including humans, possess biochemical mechanisms that influence how quickly we age and, through dietary(饮食的) intervention or genetic alteration, it is possible to extend lifespan to postpone aging-related processes and diseases.

Further research in laboratory models is expected to provide clues to and deeper understanding of how existing interventions, such as exercise and good nutrition, may lead to lifelong well-being.

The authors also propose greatly increased funding for basic research into the "fundamental cellular(细胞的) and physiological changes that drive aging itself".

"We believe that the potential benefits of slowing aging processes have been underrecognized by most of the scientific community", said Olshansky, "We call on the health-research decision-makers to allocate substantial resources to support and develop practical interventions that slow aging in people".

An increase in age-related diseases and escalating health care costs make this the time for a "systematic attack on aging itself", the authors write.

Olshansky and colleagues contend that modern medicine is already heavily invested in efforts to extend life, and they argue that a fresh emphasis on aging has the potential to improve health and quality of life far more efficiently than is currently possible.

The experts believe the traditional approach of attacking individual diseases______.

A．is the best strategy for fighting diseases.

B．focuses on slowing aging processes.

C．has gone out of date.

D．needs to be improved.

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第2题

Slowing Aging: Way to Fight Diseases in 21st CenturyA group of aging experts from the Unit

Slowing Aging: Way to Fight Diseases in 21st Century

A group of aging experts from the United States and the United Kingdom suggest that the best strategy for preventing and fighting a multitude of diseases is to focus on slowing the biological processes of aging.

"The traditional medical approach of attacking individual diseases—cancer, diabetes, heart disease, Alzheimer's disease(早老性痴呆病) and Parkinson's disease(帕金森氏病)—will soon become less effective if we do not determine how all of these diseases either interact or share common mechanisms with aging", says S. Jay Olshansky, professor of epidemiology at the University of Illinois at Chicago School of Public Health and senior author of the commentary.

Middle-aged and older people are most often impacted by simultaneous but independent medical conditions. A cure for any of the major fatal diseases would have only a marginal impact on life expectancy(预期寿命) and the length of healthy life, Olshansky said. The authors suggest that a new paradigm(模式) of health promotion and disease prevention could produce unprecedented social, economic and health dividends for current and future generations if the aging population is provided with extended years of healthy life.

They note that all living things, including humans, possess biochemical mechanisms that influence how quickly we age and, through dietary(饮食的) intervention or genetic alteration, it is possible to extend lifespan to postpone aging-related processes and diseases.

Further research in laboratory models is expected to provide clues to and deeper understanding of how existing interventions, such as exercise and good nutrition, may lead to lifelong well-being.

The authors also propose greatly increased funding for basic research into the "fundamental cellular(细胞的) and physiological changes that drive aging itself".

"We believe that the potential benefits of slowing aging processes have been underrecognized by most of the scientific community", said Olshansky, "We call on the health-research decision-makers to allocate substantial resources to support and develop practical interventions that slow aging in people".

An increase in age-related diseases and escalating health care costs make this the time for a "systematic attack on aging itself", the authors write.

Olshansky and colleagues contend that modern medicine is already heavily invested in efforts to extend life, and they argue that a fresh emphasis on aging has the potential to improve health and quality of life far more efficiently than is currently possible.

The experts believe the traditional approach of attacking individual diseases______.

A．is the best strategy for fighting diseases.

B．focuses on slowing aging processes.

C．has gone out of date.

D．needs to be improved.

点击查看答案

第3题

第三篇Slowing Aging: Way to Fight Diseases in 21st CenturyA group of aging experts from th

第三篇

Slowing Aging: Way to Fight Diseases in 21st Century

A group of aging experts from the United States and the United Kingdom suggest that the best strategy for preventing and fighting a multitude of diseases is to focus on slowing the biological processes of aging.

"The traditional medical approach of attacking individual diseases - cancer, diabetes, heart disease, Alzheimer's disease (早老性痴呆病) and Parkinson's disease (帕金森氏病) -will soon become less effective if we do not determine how all of these diseases either interact or share common mechanisms with aging," says S. Jay Olshansky, professor of epidemiology at the University of Illinois at Chicago School of Public Health and senior author of the commentary.

Middle-aged and older people are most often impacted by simultaneous but independent medical conditions. A cure for any of the major fatal diseases would have only a marginal impact on life expectancy (预期寿命) and the length of healthy life, Olshansky said.

The authors suggest that a new paradigm (模式) of health promotion and disease prevention could produce unprecedented social, economic and health dividends for current and future generations if the aging population is provided with extended years of healthy life.

They note that all living things, including humans, possess biochemical mechanisms that influence how quickly we age and, through dietary (饮食的) intervention or genetic alteration, it is possible to extend lifespan to postpone aging-related processes and diseases.

Further research in laboratory models is expected to provide clues to and deeper understanding of how existing interventions, such as exercise and good nutrition, may lead to lifelong well-being.

The authors also propose greatly increased funding for basic research into the

"fundamental cellular (细胞的) and physiological changes that drive aging itself."

"We believe that the potential benefits of slowing aging processes have been

underrecognized by most of the scientific community," said Olshansky. "We call on the health-research decision-makers to allocate substantial resources to support and develop practical interventions that slow aging in people."

An increase in age-related diseases and escalating health care costs make this the time for a "systematic attack on aging itself," the authors write.

Olshansky and colleagues contend that modern medicine is already heavily invested in efforts to extend life, and they argue that a fresh emphasis on aging has the potential to improve health and quality of life far more efficiently than is currently possible.

41 The experts believe the traditional approach of attacking individual diseases

A is the best strategy for fighting diseases.

B focuses on slowing aging processes.

C needs to be improved.

D has gone out of date.

点击查看答案

第4题

根据以下材料，回答题Slowing Aging: Way to Fight Diseases in 21st CenturyA group of aging ex

根据以下材料，回答题

Slowing Aging: Way to Fight Diseases in 21st Century

A group of aging experts from the United States and the United Kingdom suggest that the best strategy for preventing and fighting a multitude of diseases is to focus on slowing the biological processes of aging.

"The traditional medical approach of attacking individual diseases- cancer， diabetes， heart disease， Alzheimer"s disease （早老性痴呆病） and Parkinson"s disease （帕金森氏病） –will soon become less effective if we do not determine how all of these diseases either interact or share common mechanisms with aging，" says S. Jay Olshansky， professor of epidemiology at the University of Illinois at Chicago School of Public Health and senior author of the commentary.

Middle-aged and older people are most often impacted by simultaneous but independent medical conditions. A cure for any of the major fatal diseases would have only a marginal impact on life expectancy （预期寿命） and the length of healthy life， Olshansky said.

The authors suggest that a new paradigm （模式） of health promotion and disease prevention could produce unprecedented social， economic and health dividends for current and future generations if the aging population is provided with extended years of healthy life.

They note that all living things， including humans， possess biochemical mechanisms that influence how quickly we age and， through dietary （饮食的） intervention or genetic alteration， it is possible to extend lifespan to postpone aging-related processes and diseases.

Further research in laboratory models is expected to provide clues to and deeper understanding of how existing interventions， such as exercise and good nutrition， may lead to life-long well-being.

The authors also propose greatly increased funding for basic research into the "fundamental cellular （细胞的） and physiological changes that drive aging itself".

"We believe that the potential benefits of slowing aghag processes have been underrecognized by most of the scientific community，" said Olshansky. "We call on the health research decision-makers to allocate substantial resources to support and develop practical interventions that slow aging in people."

An increase in age-related diseases and escalating health care costs make this the time for a"systematic attack on aging itself"， the authors write.

Olshansky and colleagues contend that modem medicine is already heavily invested in efforts to extend life， and they argue that a fresh emphasis on aging has the potential to improve health and quality of life far more efficiently than is currently possible.

The experts believe the traditional approach of attacking individual diseases __________. 查看材料

A.is the best strategy for fighting diseases

B.focuses on slowing aging processes

C.has gone out of date

D.needs to be improved

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第5题

Part ADirections: Read the following four texts. Answer the questions below each text by c

Part A

Directions: Read the following four texts. Answer the questions below each text by choosing A, B, C or D . Mark your answers on ANSWER SHEET 1.

Almost everybody wants to live as long as possible. And given the enormous strides made in medicine and the health sciences during the past 150 years, people could be forgiven for hoping that someday human beings will live, if not quite forever, at least far longer than at present. Since the mid 19th century, average life expectancy at birth has nearly doubled: from 40 years to 75. Today many people live past 100, and the oldest individuals have reached either 115 or 120, depending on whom you believe.

So it comes as something of a surprise to be told by the experts that human beings have taken life about as far as it can go. That is the serious conclusion of a report in Science magazine last week by S. Jay Olshansky and Christine Cassel. Unless an unexpected breakthrough in basic science that would prevent the aging process, the era of rapid increases in human life span has come to an end, at least in developed countries. Even if science could cure heart disease and cancer, which account for nearly 50 percent of all deaths in the U. S. , it is unlikely that the average life expectancy at birth would increase much beyond 85.

What makes the report so compelling is that it is based on simple mathematics. In the past, the upper limits of life have been guessed from actuarial tables by estimating how death rates would change if, say, the incidence of heart disease were halved. "We reversed the question," says Olshan sky. Taking an" engineering approach" his team members asked themselves how many death rates would have to be reduced in order to increase average life expectancy to 120 years. What they discovered, after running the numbers through a computer, was that big hits in current death rates in the U. S. would give only small lifts to life expectancy. For example, if some miracle of medicine can guarantee no one died before reaching age 50 (thus eliminating 12 percent of all deaths), the increase in average life expectancy would be only 3.5 years.

There seems to be a kind of built-in biological limit programmed into the cells of the human body. In laboratory experiments, human cells divide only about 50 times before they begin to fall apart like old cars. This planned loss of use on nature's part makes a certain amount of evolutionary sense. Survival of the fittest, after all, rewards only those who reproduce, not necessarily those who reach old age, Once reproduction is over, human bodies may as well be throwaway goods, biologically speaking.

Why is it forgivable for people to hope that they will live longer in the future than now？

A．Because people want to live as long as possible,

B．Because life expectancy has doubled since the mid-19th century.

C．Because many people live past 100 and the oldest individuals have reached more than 100.

D．Because great progress is made in medicine and health sciences during the past 150 years.

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第6题

In hole based system of fit, what is the basic devitaion symmbol of the hole

A、h

B、H

C、H/h

D、any letter

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第7题

What are the detailed sentences？

A.G, B

B.H, F

C.D, H

D.H, C

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第8题

What is the value of fg/h？（1) f=h/2 （2) h=5g

What is the value of fg/h？

(1) f=h/2

(2) h=5g

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第9题

What is the minimum value of H（p1,…,pn)=H（P) as P ranges over the set of n-dimensional probability v

What is the minimum value of H(p₁,…,p_n)=H(P) as P ranges over the set of n-dimensional probability vectors？ Find all P's which achieve the minimum.

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第10题

Fill in the blanks according to the meaning. What would you like to drink？ Nǐ hē_______？

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