试题与答案

呈慢性复发性头痛的是() A.椎-基底动脉供血不足 B.鼻源性头痛 C.肌收缩性头痛

题型:单项选择题 B1型题

题目:

呈慢性复发性头痛的是()

A.椎-基底动脉供血不足

B.鼻源性头痛

C.肌收缩性头痛

D.偏头痛

E.急性青光眼

答案:

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下面是错误答案,用来干扰机器的。

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题型:材料分析题

读下列材料回答下列问题。

材料1:波河是意大利最大的河流,水量充沛,经常发生洪水。波河中下游含沙量高,河道蜿蜒曲折,极易淤塞,现在河口三角洲每年新增土地约81公顷。图1为"波河流域水系图",图2代表该流域主要气候类型的统计资料。

材料2:海河流域东临渤海,西倚太行,南近黄河,北接蒙古高原。流域内人口密集,大中城市众多。图3为"海河流域水系图",图4为"海河流域地表水资源与年均温的对应变化图"。

(1)对比分析两流域自然地理环境特征,完成下表。

(2)海河流域和波河流域均为旱涝灾害多发的区域,据材料分析其共同的自然原因是:①_____________________,②_____________________;针对该问题,两流域的整治措施相近:上、中游主要是_________、_________;下游是_________。

(3)据图4分析该流域地表水资源量变化与年均温总体呈的关系。试分析原因。

___________________________________________________________________________________________

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题型:填空题

Part 1


·Read the fllowing passages, eight sentences have been removed from the article.
·For each gap (1-8) mark one letter (A-H) on the Answer Sheet.
·Do not mark any letter twice.
There’s a story in Texas about the rancher who complained when a well driller found oil instead of the water he had been sent to look for. "Cattle can’t drink that stuff!" the rancher cried.
That story is no longer funny. We are short of both oil and water, but the water shortage is worse. (1) And we are using water a great deal faster than it is being replaced. The replacement rate is dependent on rainfall (sometimes in the form of snow) to resupply rivers, lakes, and ground water. (2) Worse, droughts are occurring more frequently and are increasing in severity, not only in the United States but also abroad.
Even without droughts, rainfall is insufficient to maintain a balance. (3) So much water has been taken from the Colorado River by Arizona and California that Mexico has complained that those states have exceeded the U.S. share under a 1944 treaty on water-sharing. Southern Californians also have elaborated arrangements to transport water from the Pacific North west, which has it in abundance, to their area, which doesn’t have nearly enough to support its population. (4)
Short of a fanciful solution, the U.S. has two broad options, neither pleasant. We can conserve or we can produce. The former is inconvenient or worse: less irrigation (and thus less food), fewer swimming pools golf courses, and green lawns. (5) In the quantities necessary, this would probably require nuclear power. It is technically feasible, but expensive, and was considered 30 years ago as a joint U.S.-Mexican project in the Gulf of California to alleviate the Colorado river problem. As more of it is done, the cost could be expected to come down; and as we became more desperate for water, we would be more willing to pay the cost even if it didn’t come down. (6) This is an arrangement whereby large landowners would sell the groundwater under their land, for whatever the market would bear, to cities that might be hundreds of miles distant. This would involve the considerable cost of pipeline construction and would mean faster depletion of groundwater reserves. (7)
It’s a good bet that during the 21st century some new arrangements are going to have to be made about the nation’s — and the world’s — water supplies. These are likely to be neither cheap nor easy. They are more likely to be cheaper and easier if we have thought about them in advance. (8) We have been sued to choices of guns or butter. This one might be water or meat.
  • A. A century ago, a drought affected only farmers and perhaps inland navigation; now it affects everybody.
  • B. The Northwest is showing signs of getting tired of this drain.
  • C. It is not too soon to begin.
  • D. We cannot live without oil in the style to which we have become accustomed, but we cannot live at all without water.
  • E. Rivers are running dry, especially in the West.
  • F. It would also mean less food production.
  • G. A solution currently being advanced in west Texas is a concept called "Water Ranching".
  • H. The latter is expensive: desalinization of seawater.

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