洄游

患儿，3岁，不会坐、站、走，不会说话，尿有鼠尿味，查体：头发浅黄，皮肤白皙，该患儿首选应作哪项检查（）

A.头颅CT

B.智力测定

C.尿三氯化铁试验

D.骨龄

E.脑地形图

第二部分：阅读理解（共20题，每小题3分，满分60分）

阅读下列短文，从每题所给的四个选项（A、B、C和D）中，选出最佳选项，并在机读卡上将该项涂黑。

The part of the earth’s history known as the coal age began more than 250 million years ago and lasted millions of years. During that time, in the area that is now the United States, coal beds formed from Texas to the north Atlantic coast.

At that time thick forests swamps（沼泽） covered much of the earth’s surface. Great trees died and fell into the swamps. Then they rotted （腐烂）and new trees and plants grew on top of them. The process repeated itself for thousands of years. The rotted plants turned into a substance called peat（泥炭）, which is still forming today in many swamps.

Meanwhile the land surface was changing. Movement in the earth’s crust (地壳) pushed up hills in some places, while elsewhere land sank. Swift rivers ran from the hills; heavy rains fell and the rivers overflowed, leaving muddy sand in the sunken wooded places and swamps. Oceans, too, poured in over the low-lying land, carrying sand that covered the peaty areas.

The pressure of water and sand pressed the oxygen and hydrogen out of the peat, leaving carbon. Under constant pressure, the rotted material, containing a high percentage of carbon, formed gradually into coal.

56. This main idea of the passage is about the ______.

A. coal beds in the U.S.   B. earth’s history   C. formation of coal   D. swamp age

57. When plants died, they _____.

A. grew up again       B. fell into the water and rotted

C. fell into coal beds    D. turned immediately to coal

58. Hills were formed as a result of _____.

A. movements of the earth’s crust       B. the remaining from swamps

C. the remaining from swift rivers       D. ocean currents

59. What is implied but not stated in the passage?

A. Peat is still forming today.

B. The formation of coal requires high pressure.

C. The land surface changed during the coal age.

D. The formation of coal was very rapid.

所谓室内设计，是指将人们的（）和（）相互结合，从建筑内部把握空间的一项活动。

某国内企业曾长期经营计算机业务，在20世纪90年代后期先后涉足软件开发、手机、互联网等多个业务领域。几年过后，后增加的这些业务并没有给公司发展带来多大贡献。公司董事会终于作出决定，出售手机、互联网等业务，并重新专注于计算机业务。

根据以上资料，回答以下问题：

20世纪90年代后期以来公司实行的发展战略属于（）

A．集中型战略

B．一体化战略

C．关联多元化战略

D．无关联多元化战略

对于确定的信息系统项目，要明确其目标，并对目标进行（）和（）。