logo - 刷刷题
下载APP
【单选题】

I () the Summer Palace before, but I decided to visit it a second time.

A.
have visited
B.
visited
C.
hadn't visited
D.
had visited
举报
参考答案:
参考解析:
.
刷刷题刷刷变学霸
举一反三

【多选题】公安机关的基本职能是( )。

A.
打击职能与预防职能
B.
专政职能与民主职能
C.
对内职能与对外职能
D.
侦查职能与治安行政管理职能

【单选题】女性,69岁,右乳癌直径1.Scm,腋淋巴结无癌转移,雌孕激素受体阳性,治疗方案宜选择

A.
乳癌改良根治术+三苯氧胺治疗
B.
肿块切除+放射治疗
C.
乳腺单纯切除术
D.
乳腺扩大根治术
E.
术前放射治疗十全身化疗后,行乳腺单纯切除术并继续化疗

【单选题】That Africa and South America were once joined can be deduced from the fact that () A.the two continents are still moving in opposite directions B.they have been found to share certain geological feat...

A.
Text 4
B.
Scattered around the globe are more than 100 small regions of isolated volcanic activity known to geologists as hot spots. Unlike most of the world’ s volcanoes, they are not always found at the boundaries of the great drifting plates that make up the earth’ s surface; on the contrary, many of them lie deep in the interior of a plate. Most of the hot spots move only slowly, and in some cases the movement of the plates past them has left trails of dead volcanoes. The hot spots and their volcanic trails are milestones that mark the passage of the plates.
C.
That the plates are moving is not beyond dispute. Africa and South America, for example, are moving away from earth other as new material is injected into the sea floor between them. The complementary coastlines and certain geological features that seem to span the ocean are reminders of where the two continents were once joined. The relative motion of the plates carrying these continents has been constructed in detail, but the motion of one plate with respect to another cannot readily be translated into motion with respect to the earth’ s interior. It is not possible to determine whether both continents are moving in opposite directions or whether one continent is stationary and the other is drifting away from it. Hot spots, anchored in the deeper layers of the earth, provide the measuring instruments needed to resolve the question. From an analysis of the hot spot population it appears that the African plate is stationary and that it has not moved during the past 30 million years.
D.
The significance of hot spots is not confined to their role as a frame of reference. It now appears that they also have an important influence on the geophysical processes that propel the plates across the globe. When a continental plate comes to rest over a hot spot, the material rising from deeper layer creates a broad dome. As the dome grows, it develops seed fissures(cracks); in at least a few cases the continent may break entirely along some of these fissures, so that the hot spot initiates the formation of a new ocean. Thus just as earlier theories have explained the mobility of the continents, so hot spots may explain their mutability(inconstancy).

【单选题】治疗妊娠期高血压脾虚证,应首选

A.
天仙藤散
B.
白术散
C.
真武汤
D.
肾气丸
E.
四苓散

【单选题】The author raises the question "what about pain without gain. because() A.he questions the truth of "no gain without pain" B.he does not think the productivity revolution works C.he wonders if the off...

A.
Text 2
B.
Well, no gain without pain, they say. But what about pain without gain.’ Everywhere you go in America, you hear tales of corporate revival. What is harder to establish is whether the productivity revolution that businessmen assume they are presiding over is for real.
C.
The official statistics are mildly discouraging. They show that, .if you lump manufacturing and services together, productivity has grown on average by 1.2% since 1987. That is somewhat faster than the average during the previous decade. And since 1991, productivity has in creased by about 2% a year, which are more than twice the 1978 - 1987 averages. The trouble is that part of the recent acceleration is due to the usual rebound that occurs at the point in a business cycle, and so is not conclusive evidence of a revival in the underlying trend. There is, as Robert Rubin, the treasury secretary, says, a "disjunction" between the mass of business anecdote that points to a leap in productivity and the picture reflected by the statistics.
D.
Some of this can be easily explained. New ways of organizing the workplace all that reengineering and downsizing--are only one contribution to the overall productivity of an economy, Which is driven by many other factors such as joint investment in equipment and machinery, new technology, and investment in education and training. Moreover, most of the changes that companies make are intended to keep them profitable, and this need not always mean increasing productivity: switching to new markets or improving quality can matter just as much.
E.
Two other explanations are more speculative. First, some of the business restructuring of recent years may have been ineptly done. Second, even if it wag well done, it may have spread much less widely than people suppose.
F.
Leonard Schlesinger, a Harvard academic and former chief executive of Au Bong Pain, a rapidly growing chain of bakery cafes, says that much "reengineering" has been crude. In many cases, he believes, the loss of revenue has been greater than the reductions in cost. His colleague, Michael Beer, says that far too many companies have applied reengineering in a mechanistic fashion, chopping out costs without giving sufficient thought to long - term profitability. B. B. D. O’ s A1 Rosen shine is blunter. He dismisses a lot of the work of re engineering consultants as mere rubbish--" the worst sort of ambulance cashing."

【单选题】冠心病易发性格模型指的是()。

A.
A型性格
B.
B型性格
C.
C型性格
D.
D型性格
E.
E型性格

【单选题】Which of the following statements is NOT mentioned in the passage() A.Radical reforms are essential for the increase of productivity. B.New ways of organizing workplaces may help to increase productiv...

A.
Text 2
B.
Well, no gain without pain, they say. But what about pain without gain.’ Everywhere you go in America, you hear tales of corporate revival. What is harder to establish is whether the productivity revolution that businessmen assume they are presiding over is for real.
C.
The official statistics are mildly discouraging. They show that, .if you lump manufacturing and services together, productivity has grown on average by 1.2% since 1987. That is somewhat faster than the average during the previous decade. And since 1991, productivity has in creased by about 2% a year, which are more than twice the 1978 - 1987 averages. The trouble is that part of the recent acceleration is due to the usual rebound that occurs at the point in a business cycle, and so is not conclusive evidence of a revival in the underlying trend. There is, as Robert Rubin, the treasury secretary, says, a "disjunction" between the mass of business anecdote that points to a leap in productivity and the picture reflected by the statistics.
D.
Some of this can be easily explained. New ways of organizing the workplace all that reengineering and downsizing--are only one contribution to the overall productivity of an economy, Which is driven by many other factors such as joint investment in equipment and machinery, new technology, and investment in education and training. Moreover, most of the changes that companies make are intended to keep them profitable, and this need not always mean increasing productivity: switching to new markets or improving quality can matter just as much.
E.
Two other explanations are more speculative. First, some of the business restructuring of recent years may have been ineptly done. Second, even if it wag well done, it may have spread much less widely than people suppose.
F.
Leonard Schlesinger, a Harvard academic and former chief executive of Au Bong Pain, a rapidly growing chain of bakery cafes, says that much "reengineering" has been crude. In many cases, he believes, the loss of revenue has been greater than the reductions in cost. His colleague, Michael Beer, says that far too many companies have applied reengineering in a mechanistic fashion, chopping out costs without giving sufficient thought to long - term profitability. B. B. D. O’ s A1 Rosen shine is blunter. He dismisses a lot of the work of re engineering consultants as mere rubbish--" the worst sort of ambulance cashing."

【单选题】Paragraphs 2 and 3 are written to() A.discuss the cause of the decline of science's power B.show the author' s sympathy with scientists C.explain the way in which science develops D.exemplify the divi...

A.
Text 3
B.
Science has long had an uneasy relationship with other aspects of culture. Think of Galileo’ s 17th century trial for his rebelling belief before the Catholic Church or poet William Blake’ s harsh remarks against the mechanistic worldview of Isaac Newton. The schism between sciences and the humanities has, if anything, deepened in this century.
C.
Until recently, the scientific community was so powerful that it could effort to ignore its critics--but no longer. As funding for science has declined, scientists have attacked "antiscience" in several books, notably Higher Superstition, by Paul Regress, a biologist at the University of Virginia, and Norman Leavitt, a mathematician at Rutgers University; and The Demon Haunted World, by Car Satan of Cornell University.
D.
Defenders of science have also voiced their concerns at meetings such as "The Flight from Science and Reason", held in New York City in 1995, and "Science in the Age of (Miss)information," which assembled last June near Buffalo.
E.
Antiscience clearly means different things to different people. Gross and Leavitt find fault primarily with sociologists, philosophers and other academics, that have questioned science’ s objectivity. Saga is more concerned with those who believe in ghosts, creationism and other phenomena that contradict the scientific worldview.
F.
A survey of news stories in 1996 reveals that the antiscience tag has been attached to many other groups as well, from authorities who advocated the elimination of the last remaining stocks of smallpox virus to Republicans who advocated decreased funding for basic research.
G.
Few would dispute that the term applies to the Unabomber, those manifesto, published in 1995, scorns science and longs for return to a pre - technological utopia. But surely that does not mean environmentalists concerned about uncontrolled industrial growth are antiscience, as an essay in US News & World Report last May seemed to suggest.
H.
The environmentalists, inevitably, respond to such critics. The true enemies of science, argues Paul Ehrlich of Stanford University, a pioneer of environmental studies, are those who question the evidence supporting global warming, the depletion of the ozone layer, and other consequences of industrial growth.
I.
Indeed, some observers fear that the antiscience epithet is in danger of becoming meaningless. "The term ’ antiscience can lump together too many, quite different things," notes Harvard University philosopher Gerald Holton in his 1993 work Science and Anti-Science.
J.
"They have in common only one thing that they tend to annoy or threaten those who regard themselves as more enlightened."

【单选题】诊断类风湿关节炎最有意义的实验室指标是

A.
血清抗链球菌溶血素“O”阳性
B.
抗链球菌激酶阳性
C.
抗透明质酸酶阳性
D.
血沉加快
E.
类风湿因子阳性