搜题请搜索小程序“爱下问搜题”
问题 选择题

2011年安徽“两会”指出：推进兴国富民大业，必须着力改善民生，提升人民群众幸福指数。改善民生，是经济发展的目的和动力，是社会和谐的基础和保证。着力解决民生问题最根本的途径是[ ]

A．以经济建设为中心，集中力量发展社会生产力   

B．实行对外开放，全面提高我国的对外开放水平

C．加强精神文明建设，提高中 * * 文化素质     

D．坚持人民民主专政，保障人民当家作主

答案

答案：A

单项选择题

下面几种流量计只有一种不属于容积式流量计（）.

A.椭圆齿轮流量计

B.刮板流量计

C.腰轮流量计

D.转子流量计
查看答案
填空题

People who work rotating night shifts appear to have a lower (47) of Parkinson’s disease, the results of a study published in the American Journal of Epidemiology. And (48) , an increased risk of developing this condition is linked to a longer average duration of sleep.
"Working rotating night shifts disrupts rhythms and may have a wide (49) of physiologic (理疗) effects on shift workers," Dr. Honglei Chen, of the National Institutes of Health, writes.
"In the (50) studies, some inference has been confirmed. Shift work has been (51) to higher risks of some chronic diseases, including certain types of cancers," they note, but any effect on the risk of developing Parkinson’s disease has not been (52) .
The researchers therefore (53) data from the U.S. Nurses’ Health Study, which enrolled 84, 794 female nurses, to see if there was an association between working rotating night shifts and Parkinson’s disease risk. The risk of Parkinson’s disease was 50-percent lower among women who had at least 15 years of night shift work compared with those who never worked rotating night shifts.
After (54) for differences in age and smoking status, the investigators found that a longer sleep duration was associated with a higher risk of Parkinson’s disease.
Plausible explanations for these results are lacking, Chen’s team points out. They note that shift
work has been associated with (55) increase in blood level of uric acid (尿酸), "which may be (56) against Parkinson’s disease."

  • A) thereforeI) doubtful
  • B) previousJ) number
  • C) range K) little
  • D) linked L) later
  • E) risk M) modest
  • F) investigated N) protective
  • G) conversely O) evaluated
  • H) accounting
查看答案