皮皮学,免费搜题
登录
logo - 刷刷题
搜题
【单选题】
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
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
参考答案:
举一反三
【简答题】简述果蔬护色的方法?
【单选题】碱金属单质通性不正确的是
A.
硬度小,密度小,熔点低
B.
导热导电性强
C.
焰色反应颜色相近
D.
强还原性
【多选题】果蔬的护色方法
A.
烫漂
B.
加盐处理
C.
加糖处理
D.
添加维生素C
【单选题】下列有关叙述正确的是 ①碱金属单质的密度通常情况下均比水小 ②碱金属元素均具有强还原性 ③碱金属的氢氧化物在加热的条件下均不分解 ④热稳定性:Na 2 CO 3 >NaHCO 3 >H 2 CO 3 ⑤CsOH是离子化合物,易溶于水,且碱性比NaOH强 ⑥Cs 2 CO 3 加热易分解成Cs 2 O和CO 2 ⑦Na、K、Rb、Cs中,Cs的熔点最高,密度最大
A.
全部
B.
全不正确
C.
④⑤
D.
①②④⑤⑦
【判断题】建筑功能是人们对房屋的具体使用要求,它体现着建筑物的目的性。因此,在建筑设计中应充分重视使用功能的可持续性,以及建筑物在使用过程中的可改造性。( )
A.
正确
B.
错误
【单选题】以下说法正确的是()
A.
加碘食盐中的“碘”通常是指碘单质
B.
铝是不活泼金属,所以铝制品不易锈蚀
C.
可用氢氧化钠改良酸性土壤
D.
可用纯碱代替洗洁精吸附餐具表面油污
【单选题】给家兔静脉注射去甲肾上腺素后血压升高,肾小球滤过率和尿量迅速减少,该动物肾小球滤过率降低的主要原因是
A.
肾小球毛细血管血压升高
B.
肾血流量减少
C.
肾小囊内压升高
D.
肾小囊内液胶体渗透压降低
E.
血浆胶体胶体渗透压降低
【简答题】(8分)A—E五种元素中,除A、B外其他均为短周期元素它们的性质或原子结构如下表: 元素 元素性质或原子结构 A 单质为生活中常见的金属,该金属的两种黑色氧化物(其中一种有磁性)的相对分子质量相差160 B 单质为生活中常见的金属,其相对原子质量比A大8 C 地壳中含量最多的金属元素 D 元素的主族序数是其所在周期序数的3倍 E E的某种原子的原子核内没有中子 (1)C单质在强碱溶液反应的离子方程...
【单选题】堵漏的警报信号是---------
A.
二长声,二短声,连放一分钟
B.
B二短声,一长声,连放一分钟
C.
二长声,一短声,连放一分钟
D.
二短声,二长声,连放一分钟
【简答题】建筑功能是人们对房屋的具体使用要求,它体现着建筑物的目的性。因此,在建筑设计中应充分重视使用功能的( ),以及建筑物在使用过程中的( )。
相关题目:
参考解析:
知识点:
题目纠错 0
发布
创建自己的小题库 - 刷刷题