Which part of the renal tubule would have the lowest tubular fluid osmolarity in a patient who has complete lack of antidiuretic hormone due to “central” diabetes insipidus（中枢尿崩症）？

Which of the following cannot explain why the interior of the earth is fluid?

A．There is great pressure at the centre.

B．Earthquake waves can move vertically.

C．The outer layer is made of rock.

D．The heat at the centre is too great.

Which of the fluids listed is normally used to condense the primary refrigerant in a shipboard central air conditioning system?

A.Air or Nitrogen

B.Seawater or Fresh water

C.Sodium Nitrate brine

D.Calcium Sulfate brine

A、increase of osmotic pressure in renal tubule fluid

B、the increase in glomerular filtration rate

C、decrease in plasma colloid osmotic pressure

D、decrease in plasma crystal osmotic pressure

E、the decrease in ADH

A、the increase in glomerular filtration rate

B、decrease in plasma colloid osmotic pressure

C、decrease in plasma crystal osmotic pressure

D、increase of osmotic pressure in renal tubule fluid

E、the decrease in ADH

According to the passage, which of the following is NOT true about the function and nature of slat?

A．It is composed of sodium and chloride.

B．It helps the body to keep fluid substance.

C．Too much salt consumed can lead to high blood pressure.

D．It is the direct cause of heart diseases.

听力原文： I found myself facing a dry-cleaning store which has once been one of the best restaurants in New York. On Sundays the old man would take my mother and me for dinner. There had been a balcony where a baker in a tall white hat baked fresh rolls and whenever a customer entered, the baker would look down and put in a fresh batch. I could smell the rolls through the odor of cleaning fluid on Lenox Avenue. I could see the manager who always sat down will4 us while we ate. He had some disease, I suppose, because the right side of his face was swollen out like a balloon, but he always wore a hard wing collar and a white tie, and never seemed sick. A Negro with a moustache was looking through the store window at me. For a moment I had the urge to go and tell him what I remembered, to describe this avenue when no garbage cans were on the street, when the Daimlers and Minervas and Fords had cruised by, and the cop on the corner threw back the ball when it got through the outfield on 114th street. I did not go into the store, nor even toward our house. Any claim I had to anything had lapsed. I went downtown instead and sat in my room, trying to read.

According to the speaker, the dry-cleaning store used to be a ______.

A．hote

B．restaurant

C．bakery

D．garage

Which of the following is NOT true? ______

A．People with too much yellow bile were easily angered.

B．The names of the four fluids are still used today.

C．People with an oversupply of blood would easily get excited.

D．Many features of human beings have been used to classify personality.

Use of the illegal drag named Ecstasy (MDMA) has increased alarmingly in Britain over the last few years, and in 1992 the British Medical Journal claimed that at least seven deaths and many severe adverse reactions have followed its use as a dance drug.14 deaths have so far been attributed to the drug in Britain although it is possible that other drugs contributed to some of those deaths. While it is true that all drugs by their very, nature change the way in which the body reacts to its environment and are therefore potentially dangerous, it is still unclear whether casual use of Ecstasy is as dangerous as authorities believe. What is certain is that the drug causes distinct changes to the body which, unless understood, may lead to fatal complications in certain circumstances. In almost all cases of MDMA related deaths in Britain, overheating of the body and inadequate replacement of fluids have been noted as the primary causes of death. Yet in the US, studies appear to implicate other causes. It seems that normal healthy people are unlikely to die as a result of taking MDMA, but people with pre-existing conditions such as a weak heart or asthma may react in extreme ways and are well advised not to take it. Not all physical problems associated with the drug are immediate. Medium term and long term effects have been reported which are quite disturbing, yet not all are conclusively linked to the drug's use. Medium term effects include the possibility of contracting the liver disease hepatitis or risking damage to the kidneys. However, animal studies show no such damage, although it is readily admitted by researchers that animal studies are far from conclusive since humans react in different ways than rats and monkeys to the drug.

Perhaps the most damning evidence urging against the use of Ecstasy is that it is undoubtedly an addictive substance, but one that quickly loses its ability to transport the mind, while it increases its effect upon the body. Yet, unlike the classic addictive drugs, Ecstasy does not produce physical withdrawal symptoms. In fact, because one becomes quickly tolerant of its effect on the mind, it is necessary to forgo its use for a while in order to experience again its full effect. Any substance which produces such a strong effect on the user should be treated with appropriate respect and caution.

It is not known whether______.

A．drugs change the way the body reacts

B．the British Medical Journal has reported seven deaths caused by Ecstasy

C．Ecstasy alone was responsible for the 14 deaths in Britain

D．Ecstasy causes changes to the body

Use of the illegal drag named Ecstasy (MDMA) has increased alarmingly in Britain over the last few years, and in 1992 the British Medical Journal claimed that at least seven deaths and many severe adverse reactions have followed its use as a dance drug.14 deaths have so far been attributed to the drug in Britain although it is possible that other drugs contributed to some of those deaths. While it is true that all drugs by their very, nature change the way in which the body reacts to its environment and are therefore potentially dangerous, it is still unclear whether casual use of Ecstasy is as dangerous as authorities believe. What is certain is that the drug causes distinct changes to the body which, unless understood, may lead to fatal complications in certain circumstances. In almost all cases of MDMA related deaths in Britain, overheating of the body and inadequate replacement of fluids have been noted as the primary causes of death. Yet in the US, studies appear to implicate other causes. It seems that normal healthy people are unlikely to die as a result of taking MDMA, but people with pre-existing conditions such as a weak heart or asthma may react in extreme ways and are well advised not to take it. Not all physical problems associated with the drug are immediate. Medium term and long term effects have been reported which are quite disturbing, yet not all are conclusively linked to the drug's use. Medium term effects include the possibility of contracting the liver disease hepatitis or risking damage to the kidneys. However, animal studies show no such damage, although it is readily admitted by researchers that animal studies are far from conclusive since humans react in different ways than rats and monkeys to the drug.

Perhaps the most damning evidence urging against the use of Ecstasy is that it is undoubtedly an addictive substance, but one that quickly loses its ability to transport the mind, while it increases its effect upon the body. Yet, unlike the classic addictive drugs, Ecstasy does not produce physical withdrawal symptoms. In fact, because one becomes quickly tolerant of its effect on the mind, it is necessary to forgo its use for a while in order to experience again its full effect. Any substance which produces such a strong effect on the user should be treated with appropriate respect and caution.

It is not known whether______.

A．drugs change the way the body reacts

B．the British Medical Journal has reported seven deaths caused by Ecstasy

C．Ecstasy alone was responsible for the 14 deaths in Britain

D．Ecstasy causes changes to the body

Auniversityresearcherneedsalargeserverwithhighnumericcomputingcapacitytodocomputationalfluiddynamicscalculations.ThepSeriestechnicalspecialisthasarecentpSeriesandRS/6000PerformanceReport.Whichofthefollowingtablesshouldbeconsultedtoadvisethecustomerconcerningrelativeperformanceofvariousmodels？（）

A.rPerf

B.ROLTP

C.SPECfp

D.SPECint