CT扫描成像基本步骤中不包括（）。 A.X线产生 B.采集数据 C.重建图像 D.显

读等高线的地形图完成下列问题（10分）

(1)A山顶的海拔高度在________米以上。B山顶的海拔高度在_______米以上。

(2)①②两坡中，陡坡是______ ，缓坡是______。

(3)C表示_______，D表示是________，E点的名称是______。F点的名称是______。

(4)选择上山省力的是______（①或②）。选择攀岩的最佳地点是______（填字母）。

一台计算机除了具备输入装置、输出装置、内存、外存之外，还必须具备下列（）项才能构成完整的计算机硬件。

A．运算器

B．控制器

C．数学协处理器

D．中央处理器

The Lunar New Year, which starts in late January this year, is the most important festival for Chinese people as most of them drop any business at hand to go back to their hometown to see their families. It is a tradition that has been cherished since ancient times, but as social mobility increases in modern times, the road to family reunions has become very uneasy.

It is not the higher travel costs, nor the expected big spending on gifts and other festival items, but the train ticket that has driven many travelers mad. I’ve heard some colleagues complain that they have tried every means to secure a train ticket, only to find it a mission impossible. Some of them have turned to the latest software to aid online booking; others have sought help from friends to increase the possibility of successful booking.

No doubt chunyun, the Spring Festival travel season, is the largest-scale annual human migration in the world. Last year, 220 million passengers traveled by train during the Spring Festival season, which usually lasts 40 days. It is a huge jump from 10 years ago, when the number was 128 million.

With the big sudden increase in demand, the railway company has increased investment in railway construction; still, it cannot bridge the supply gap, leading to fierce public complaints and criticism.

Admittedly, it is almost impossible for the railway company to suddenly improve its capacity to meet the explosive demand during the Spring Festival holiday. Moreover, any temporary increase in capacity would become unnecessary after the holiday and mean great commercial losses during the off season.

What the company can reasonably do is gradually improve its capacity while focusing on better distribution of its existing resources during the special peak season. At any rate, however, the problem cannot be solved overnight.

小题1:Compared with ten years ago, the percentage of passengers last year increased by________.

A．40%

B．58%

C．71%

D．83%小题2:Which of the following does the author probably agree with?

A．Social mobility in modern times hasn’t changed much in these years.

B．The latest software may increase the possibility of successful booking.

C．Higher travel costs discourage travelers from reunions with families.

D．People nowadays cherish reunion with their families more than before.小题3:Which word can be used to best describe the way to solve the problem only by increasing capacity?

A．Expensive

B．Effective

C．Hopeful

D．Impractical小题4:What’s the tone of the whole passage?

A．Optimistic.

B．Objective

C．Subjective

D．Critical

上海自主研发了一种氢燃料汽车，它使用氢气代替汽油。在一次测试中，汽车在水平路面受到2 400 N的水平牵引力，5 min内匀速直线行驶了9 000 m

 （1）汽车受到水平方向的阻力是多少？

 （2）汽车牵引力所做的功和功率是多少？

2008北京奥运会开幕式上，“和”字的转换，从篆体到宋体，让大家印象深刻。“和”作这一个中国文化的核心，体现在奥运会开幕式上，彰显了中国文化的价值观，用意很深。

请你与自己所在的学习小组探究下列问题：

（1）“和”作为一个中国文化的核心，它具有丰富的内涵，请举出三个含有“和”字的、有意义的词汇。（“和谐”除外）

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（2）和谐社会，已成为当今中国的主题词之一。请你设计两个调查问题，了解人们对构建和谐社会的认识情况。

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（3）“和谐社会是鸿篇巨制，做它的一撇一捺吧！” 对我们中学生来说，应如何去做好这“一撇一捺”？

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