职称英语考试

试题来源：2014年职称英语考试卫生类A级真题及答案
More about Alzheimer's Disease
Scientists have developed skin tests that may be used in the future to identify people with Alzheimer's disease1 and may ultimately allow physicians to predict who is at risk of getting this neurological disorder.
' The only current means of diagnosing the disease in a living patient is a long and expensive series of tests that eliminate every other cause of dementia.
“ Since Alois Alzheimer described the disease nearly a century ago，people have been trying to find a way to accurately diagnose it in its early stages，” said Patricia Grady，acting director of the National Institute of Neurological Disorders and Stroke in Bethesda, Maryland. "This discovery, if confirmed, could prove a big step forward in our efforts to deal with and understand the disease. ”
Alzheimer's is the single greatest cause of mental deterioration in older people, affecting between 2. 5 million and 4 million people in the United States alone. The devastating disorder gradually destroys memory and the ability to function，and eventually causes death. There is currently no known treatment for the disease.
Researches discovered that the skin cells of Alzheimer' s patients have defects that interfere with their ability to regulate the flow of potassium in and out of the cells. The fact that the cell defects are present in the skin suggests that Alzheimer's resultsfrom physiological changes throughout the body，and that dementia may be the first noticeable effect of these changes as the defects affect the cells in the brain, scientists said.
The flow of potassium is especially critical in cells responsible for memory formation. The scientists also found two other defects that affect the cells' supply of calcium, another critical element.
One test developed by researches calls for growing skin cells in a laboratory culture and then testing them with an electrical detector to determine if the microscopic tunnels that govern the flow of potassium are open. Open potassium channels create a unique electrical signature.
A spokesman for the Alzheimer's Association said that if the validity of the diagnostic test can be proven it would be an important development, but cautioned that other promising tests for Alzheimer's have been disappointing.
51.A.what  B.one  C.it  D.who
52.A.fighting  B.carrying  C.trasmintting  D.disagnosing
53.A.answer  B.effect  C.disease  D.study
54.A.slowly  B.accurately  C.newly  D.study
55.A.designed  B.annonucent  C.confimed  D.reported
56.A.cause  B.factor  C.focus  D.exceplion
57.A.finally  B.lonely  C.yet  D.alone
58.A.examination  B.evidence  C.treatment  D.fact
59.A.discovered  B.predicted  C.expected  D.warried
60.A.keeps  B.bredks  C.results  D.translates
61.A.affect  B.remove  C.collect  D.form
62.A.steady  B.natural  C.continuous  D.critical
63.A.at  B.out  C.for  D.of
64.A.start  B.get  C.follow  D.govern
65.A.chance  B.concept  C.development  D.decision

试题出处：http://www.examtiku.com/shiti/665212384.html
网考网参考答案：D、D、C、B、C、A、D、C、A、C、A、D、C、D、C
网考网解析：进入考试题库查看解析
大数据分析：根据网考网与考试题库的统计分析，该试题：
37%的考友选择了A选项
33%的考友选择了B选项
25%的考友选择了C选项
5%的考友选择了D选项
考友解析与评论：
 · 这个答案应该是错的，应该是D、D、C、B、C、A、D、C、A、C、A、D、C、D、C
 · 同样的题比原先难了
 · 答案有调整过吗，感觉原先做对了的