当m=（）时，多项式3x2+2xy+y2﹣mx2中不含x2项．

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.

According to text, what is beyond the ability of Europe’s failing firms now is().

A.to defect American competitive rivals.

B.to comply with different laws.

C.to escape the control of governments.

D.to negotiate with their creditors.

探究分析：

（资料）墨西哥的首都墨西哥城市人口已达2000万，该城市环境污染十分严重，城内有13万家工厂和150万辆汽车，每天排放大量有害气体，使墨西哥城上空常常被黄色烟雾笼罩．据环境保护专家推算，每天呼吸这种空气就等于吸两包雪茄烟．

（1）墨西哥城属于______聚落．

（2）不同类型的聚落呈现出的景观有较大差异，其主要原因是：______

A、社会制度的差异          B、建筑风格的差异

C、劳动生产方式的差异      D、风俗习惯的差异

（3）为解决人口增长过快带来的问题，人类必须有计划地生育，使人口的增长与______、______相协调，与______发展相适应．

《唐雎不辱使命》

秦王使人谓安陵君曰：“寡人欲以五百里之地易安陵，安陵君其许寡人！”安陵君曰：“大王加惠，以大易小，甚善；虽然，受地于先王，愿终守之，弗敢易！”秦王不悦。安陵君因使唐雎使于秦。

秦王谓唐雎曰：“寡人以五百里之地易安陵，安陵君不听寡人，何也？且秦灭韩亡魏，而君以五十里之地存者，以君为长者，故不错意也。今吾以十倍之地，请广于君，而君逆寡人者，轻寡人与？”唐雎对曰：“否，非若是也。安陵君受地于先王而守之，虽千里不敢易也，岂直五百里哉？”

秦王怫然怒，谓唐雎曰：“公尝闻天子之怒乎？” 唐雎对曰：“臣未尝闻也。”秦王曰：“天子之怒，浮尸百万，流血千里。”唐雎曰：“大王尝闻布衣之怒乎？”秦王曰：“布衣之怒，亦免冠徒跣，以头抢地耳。”唐雎曰：“此庸夫之怒也，非士之怒也。夫专诸之刺王僚也，彗星袭月；聂政之刺韩傀也，白虹贯日；要离之刺庆忌也，苍鹰击于殿上。此三子皆布衣之士也，怀怒未发，休祲降于天，与臣而将四矣。若士必怒，浮尸二人，流血五步，天下缟素，今日是也。”挺剑而起。

秦王色挠，长跪而谢之曰：“先生坐，何至于此！寡人谕矣，夫韩、魏灭亡，而安陵以五十里之地存者，徒以有先生也。”

小题1:解释下列加点词。（2分）

（1）岂直五百里哉 （    ）       （2）长跪而谢之 （   ）

（3）秦王色挠      （    ）       （4）休祲降于天 （    ）

小题2:翻译下面文言语句。（2分）

秦王曰：“布衣之怒，亦免冠徒跣，以头抢地耳。

译文：_______________________________________________________________                     

小题3: 秦王最后是长跪而谢之，说明了什么？这是从什么角度来表现唐雎的？                 （2分）

小题4: 请结合上下文仔细揣摩分析“公亦尝闻天子之怒乎？”这句话，写出该句话的“潜台词”。 （2分）

小题5:唐雎奉命出使秦国，与秦王展开了面对面的激烈斗争。在和秦王较量的第一回合，唐雎重申安陵君的“受地于先王，愿终守之，弗敢易!”，断然拒绝秦王的“易地”。第二回合，唐雎以“士之怒”反击秦王的“        A     ”，列举了专诸刺王僚、    B 、    C  三个“士”的事例，并表示自己要效法他们，随即，以“     D    ”的实际行动，震慑秦王，不辱使命。(4分)

小题6:在我国历史上有很多 “不辱使命”的外交人才，请列举一位，并用一两句话概述他的主要外交事迹。（3分）

A)根据汉语写出英文单词。（10分）.

1. At ______________ (周末), my mother often goes shopping.

2. The idea ______________ (听起来) very funny.

3. Excuse me, can I ______________ (借) your ruler.

4. The old man likes reading ____________ (报纸)。

5. My sister ___________ (学习)  hard at school.

6.Tom is a ____________ (礼貌) boy.

7. The _____________　（活动）is very interesting.

8.They are from _____________. They are _______________ (英国)。

9. Sometimes, we eat at my _________________ (祖父母) home.

B)根据句子意思或音标写出单词的适当形式。（10分）

1. My cousin Jack is in Class 2, G__________ 7 in our school.

2.The family like eating in the r______________ instead of (代替) at home on Sunday.

3.T__________ is the fifth day of a week.

4.We do morning e______________ every day.

5. There are 6 h___________ students in my school.

6.The sports shoes are those              (child).

7. Daniel ，___________(not talk) in class.

8. This pair of blue jeans ______________(be) beautiful.

9. Millie gets a lot of  ___________  [’preznts] at Christmas.

10. Where are my  ____________   [ ’trauz?z ]   ?

胆固醇合成的关键酶是

A．乙酰硫激酶

B．琥珀酰辅酶A转硫酶

C．乙酰辅酶A羧化酶

D．HMG-CoA合成酶

E．HMG-CoA还原酶