营养性维生素D缺乏性手足搐搦症与佝偻病发病机理的不同点在于（） A.钙吸收代谢障碍

Fear seems to be the dominant mood of the moment. Hurricanes, tidal waves, floods, earthquakes and terrorism this year have all brought with them not only appalling scenes of devastation, death and suffering, but also outrage at the lack of preparations to avoid or cope with these disasters. Now even the birds of the air are a threat, we are told. That migrating flock visible On the horizon at sunset, once a consoling reminder of the eternal rhythms of nature, could be carrying the virus which might soon kill tens of millions of people.

Given the many fingers pointed at governments in the wake of other disasters this year, it is hardly surprising that they are scrambling to respond to the threat posed by avian influenza. After confirmation this week that the HSN1 strain of bird flu, which has been spreading quickly in Asia, had been discovered in Romania and perhaps Greece, European Union foreign ministers convened an emergency meeting. President George Bush, still smarting from a torrent of criticism of his government’s clumsy response to Hurricane Katrina, has promised to rush out emergency plans for dealing with an outbreak of pandemic flu which have been stalled for years. Countries around the world are hurrying to stockpile the only current antiviral drug, Tamifln, which might be effective in saving lives in any pandemic or curbing its spread. The World Health Organisation is calling for an internationally coordinated effort. Health ministers from around the globe are due to meet next week in Canada to discuss what steps to take.

Is any of this eff6rt justified Or are politicians simply helping to feed public panic, and then covering themselves by promising to spend lavishly against a threat which may never materialize and to reduce a risk which they do not understand To ask these questions is not to counsel complacency, but to apply the kind of test which is required in any kind of disaster planning, not least because the world is an inherently dangerous place and it is impossible to plan against every possible disaster. With the media full of warnings of impending mass death, an overreaction is all too possible.

Which of the following remarks on our available antiviral medication would the author make（）

A.Effective but poisonous

B. Harmful but populous

C. Meager and not reliable

D. Affordable and palatable

不是皮肤黏膜出血的基本原因的是（）.

A.血管壁功能异常

B.血小板功能与数量异常

C.凝血因子缺乏

D.手术与创伤

E.循环抗凝物质增多

太阳和地球间的距离为，阳光从太阳照射到地球所需的时间约为 _______秒。

速发型超敏反应时，外周血中常升高的细胞是（）。

A.中性粒细胞

B.中性杆状核粒细胞

C.嗜酸性粒细胞

D.中性分叶核粒细胞

E.嗜碱性粒细胞

当检索一个压缩文件时，首先要建立压缩文件输入流对象，该对象

A．以选中的压缩文件为参数

B．以FileInputStream对象为参数

C．以InputStreamReader对象为参数

D．以BufferedReader对象为参数