题目内容

女,2岁。自幼牛乳喂养,未按要求添加辅食,有时腹泻,逐渐消瘦。体检:身高80cm,体重7000g,皮下脂肪减少,腹壁皮下脂肪厚度<0.4em,皮肤干燥、苍白,肌张力明显减低,肌肉松弛,脉搏缓慢,心音较低钝。
此患儿目前最可能的主要诊断应是

A. 营养性缺铁性贫血
B. 先天性甲状腺功能减低症
C. 营养不良
D. 婴幼儿腹泻
E. 心功能不全

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Weare's contribution in predicting E 1 Nino, was highly praised by other meteorologists.

A. Right
B. Wrong
C. Not mentioned

Stinking (发臭的) Buses
Stinking buses jam (挤满) the crowded street. Drivers(51)at one another and honk (鸣喇叭) their horns. Smog (烟雾) hurts the eyes and chokes (窒息) the senses. The(52)is Athens at rush hour. The city is in a sorry state of affairs, built(53)a plan, lacking even adequate sewerage facilities (排水设施), its 135 square miles packed with 3.7 million people.
So great has been the population flow toward the city that neighboring villages stand(54)or nearly so. About 120,000 people from distant provinces move to Athens every year. The migrants come for the few available(55), which are usually no better than the ones they ran away from. At the current(56)of migration, Athens by the year 2000 will have a population of 6.5 million, more than half the nation.
Aside from overcrowding and poor public transport, the biggest(57)facing Athenians are noise and pollution. A government study(58)that Athens was the noisiest city in the world. Smog is almost at killing levels: up to four times the level that the World Health Organization considers safe. Nearly half the pollution comes from cars.(59)high prices for vehicles and fuel, nearly 100,000 automobiles are sold in Greece each year: 3,000 drivers' licenses are(60)in Athens monthly.
After decades of neglect, Athens is at(61)getting some attention. In March a government meeting was held to discuss a plan to make the city.(62)and clean up its environment. A save-Athens ministry will propose heavy taxes to(63)immigration and a minimum of $5 billion in public spending for. Athens alone. A master plan that will move many government offices to the city's(64)is already in the works. Meanwhile, more Greeks(65)moving into Athens. With few parks and few oxygen-producing plants, the city and its citizens are literally suffocating (窒息).

A. shout
B. cry
C. curse
D. attack

El Nino
While some forecasting methods had limited success predicting the 1997 El Nino a few months in advance, the Columbia University researchers say their method call predict large El Nino events up to two years in advance. That would be good news for governments, farmers and others seeking to plan for the droughts and heavy rainfall that El Nino can produce in various parts of the world.
Using a computer the researchers matched sea-surface temperatures to later El Nino occurrences between 1980 and 2000 and were then able to anticipate El Nino events dating back to1857, using prior sea-surface temperatures. The results were reported in the latest issue of the journal Nature.
The researchers say their method is not perfect, but Bryan C. Weare. a meteorologist at the University of California, Davis, who was not involved in the work, said it "suggests'El Nino is indeed predictable.'"
"This will probably convince others to search around more for even better methods." said Weare. He added that the new method "makes it possible to predict El Nino at long lead.times." Other models also use sea-surface temperatures, but they have not looked as far back because they need other data, which is only available for recent decades, Weare said.
The ability to predict the warming and cooling of the Pacitic is of immense importance. The 1997 El Nino, for example, caused an estimated $ 20 billion in damage worldwide, offset by beneficial effects in other areas, said David Anderson, of the European Centre for Medium Range Weather Forecasts in Reading England. The 1877 El Nino, meanwhile, coincided with a failure of the Indian monsoon and a famine that killed perhaps 40 million in India and China, prompting the development of seasonal forecasting, Anderson said.
When El Nino hit in 1991 and 1997, 200 million people were affected by flooding in China alone, according to a 2002 United Nations report.
While predicting smaller El Nino events remains tricky, the ability to predict larger ones should be increased to at least a year if the new method is confirmed.
El Nino tends to develop between April and June and reaches its peak between December and February. The warming tends to last between 9 and 12 months and occurs every two to seven years
The new forecasting method does not predict any major El Nino events in the next two years, although a weak warming toward the end of this year is possible.
El Ninon. 厄尔尼诺现象
equatorial adj.赤道的
occurrence n. 发生
meteorologist n.气象学家
offset v. 抵销
lead adj. 提前的
monsoon n.季风
tricky adj.难以捉摸的
The method used by the Columbia University researchers can predict El Nino a few months in advance.

A. Right
B. Wrong
C. Not mentioned

New Foods and the New World
In the last 500 years, nothing about people—not their clothes, ideas, or languages m has changed as much as what they eat. The original chocolate drink was made from the seeds of the cocoa tree (可可树) by South American Indians. The Spanish introduced it to the rest of the world during the 1500%. And although it was very expensive, it quickly became fashionable. In London, shops where chocolate drinks were served became important meeting places. Some still exist today.
The potato is also from the New World. Around 1600; the Spanish brought it from Peru to Europe, where it soon was widely grown. Ireland became so dependent on it that thousands of Irish people starved when the crop failed during the "Potato Famine (饥荒)" of 1845-1846, and thousands more were forced to leave their homeland and move to America.
There are many other foods that have traveled from South America to the Old World. But some others went in the opposite direction. Brazil is now the world's largest grower of coffee, and coffee is an important crop in Colombia and other South American countries. But it is native to Ethiopia, a country in Africa. It was first made into a drink by Arabs during the 1400's.
According to an Arabic legend, coffee was discovered when a person named Kaldi noticed that his goats were attracted to the red berries on a coffee bush. He tried one and experienced the "wide-awake" feeling that one-third of the world's population now starts the day with.
According to the passage, which of the following has changed the most in the last 500 years?

A. Food.
B. Clothing.
C. Ideology.
D. Language.

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