问题 实验题

根据下图完成题目(13空):

1)图中4,5,6合称       ,2是      

2)形成尿的过程中,当血液流经[5]     时,会发生      作用形成原尿,原尿形成的场所在    。当原尿流经[  ]   时会发生     作用,原尿中的大部分   ,部分     ,全部     被重吸收,而剩余的水,无机盐,尿素等形成     

3)若某人出现血尿或蛋白尿,则此人可能出现病变的部位是     若尿中出现葡萄糖,则可能出现病变的部位是     (填文字)

答案

1)肾小囊 肾小球 肾小管 出球小动脉

2)肾小球   滤过  肾小囊  6 肾小管 重吸收 水 无机盐 葡萄糖  尿液

3)肾小球   肾小管

题目分析:1)构成肾脏结构和功能的基本单位是肾单位,由[6]肾小管和[5]肾小球和[4]肾小囊组成,1是入球小动脉,2是出球小动脉;

2)尿的形成主要有两个过程,肾小球和肾小囊内壁的过滤作用和肾小管的重吸收作用,当血液流经肾小球时,除了血细胞和大分子的蛋白质外,其他的如水、无机盐、尿素、葡萄糖会滤过到肾小囊腔形成原尿,原尿流经肾小管时发生了重吸收作用,原尿中全部的葡萄糖、大部分水、部分无机盐被肾小管重新吸收进入血液,而剩余的水、无机盐和没有被重吸收的尿素、尿酸等一起形成尿液;

3)当血液流经肾小球时,除了血细胞和大分子的蛋白质外,其他的如水、无机盐、尿素、葡萄糖会滤过到肾小囊腔形成原尿,若某人出现血尿或蛋白尿,则此人可能出现病变的部位是肾小球;原尿流经肾小管时,原尿中对人体有用的全部葡萄糖、大部分水和部分无机盐,被肾小管重新吸收,回到肾小管周围毛细血管的血液里,原尿经过肾小管的重吸收作用,剩下的水和无机盐、尿素和尿酸等就形成了尿液,由于肾小管发生病变,使肾小管的重吸收作用发生障碍,导致大量的葡萄糖没有被吸收,所以会造成糖尿。

单项选择题

Europe is desperate to succeed in business. Two years ago, the European Union’s Lisbon summit Set a goal of becoming the world’s leading economy by 2010. But success, as any new age executive coach might tell you, requires confronting the fear of failure. That is why Europe’s approach to bankruptcy urgently needs reform.

In Europe, as in the United States, many heavily indebted companies are shutting up shop just as the economy begins to recover. Ironically, the upturn is often the moment when weak firms finally fail. But America’s failures have a big advantage over Europe’s weaklings: their country’s more relaxed approach to bankruptcy.

In the United States the Chapter 11 law makes going bust an orderly and even routine process. Firms in trouble simply apply for breathing space from creditors. Managers submit a plan of reorganization to a judge, and creditors decide whether to give it a go or to come up with one of their own. Creditors have a say in whether to keep the firm running, or to liquidate it. If they keep it running, they often end up with a big chunk of equity, if not outright control.

But shutting a bust European company is harder in two other ways. First, with no equivalent of Chapter 11, bankruptcy forces companies to stop trading abruptly. That damages the value of the creditors’ potential assets, and may also cause havoc for customers. Second, a company that trades across the European Union will find that it has to abide by different bankruptcy laws in the 15 member states, whose courts and administrators may make conflicting and sometimes incompatible stipulations.

The absence of provision for negotiations between companies and creditors increases the temptation for government to step in. When governments do not come to the rescue, the lack of clear rules can lead to chaos. As a result of all this, Europe’s teetering firms miss the chance to become more competitive by selling assets to others who might manage them more efficiently. Their sickly American rivals survive, transformed, to sweep the field.

An opportunity now exists to think again about Europe’s approach to bankruptcy. The European Union is expected to issue a new directive on the subject in May. Germany has begun to update its insolvency law. And last year Britain produced a white paper saying that a rigid approach to bankruptcy could stifle the growth needed to meet Lisbon’s goals.

Besides applying for breathing space from creditors, managers in American firms can also().

A.damage the creditors’ potential assets.

B.request the government’s interventions.

C.take advantage of legal procedures.

D.talk with their stern debtors abroad.

完形填空