问题 多项选择题

我行境内外币支付系统已开通的币种有()。

A.英镑;

B.美元;

C.欧元;

D.港币

答案

参考答案:B, D

阅读理解

阅读理解。

     People believe that climbing can do good to health. Where can you learn the skill of climbing then? If you

think that you have to go to the mountains to learn how to climb, you're wrong. Many Americans are learning

to climb in city gyms (体育馆). Here, people are learning on climbing. The climbing wall goes straight up and

small holding places for hands and feet.

     How do people climb the wall? To climb, you need special shoes and (保护带) around your chest to hold

you. There are ropes (绳索) tied to your. The ropes hold you in place so that you don't fall. A beginner's wall

is usually about 15 feet high, and you climb straight up. There are small pieces of metal that stick out for you

to stand on and hold on to. Sometimes it's easy to see the new piece of metal. Sometimes, it's not. The most

difficult is an your fear. It's normal for humans to be afraid of falling, so it's difficult not to feel fear. But when

you move away from the wall, the and the ropes hold you, and you begin to feel safe. You move slowly until

you reach the top.

     Climbing attracts people because it's good exercise for almost everyone. You use your whole body,

especially your arms and legs. This sport gives your body a complete workout. When you climb, both your

mind and your body can become stronger.

1. What can we infer from the passage?

A. People are fairly interested in climbing nowadays.

B. It is impossible to build up one's body by climbing.

C. People can only learn the skill of climbing outdoors.

D. It is always easy to see holding places in climbing.

2. The most difficult thing to do in wall climbing is _____.

A. to tie ropes to your

B. to control your fear

C. to move away from the wall

D. to climb straight up

3. The word "workout" underlined in the last paragraph most probably means _____.

A. settlement

B. exercise

C. excitement

D. tiredness

4. Why does the author write this passage?

A. To tell people where to find gyms.

B. To prove the basic need for climbing.

C. To encourage people to climb mountains.

D. introduce the sport of wall climbing.

单项选择题

  从远古的有机分子的海洋中发展了植物、动物、人类和全球生态系统。是什么驱动自然世界朝着复杂性前进的呢   达尔文在1859年发表了震动科学界和整个社会的《物种起源》,创立了进化论。达尔文的进化论主要讨论了两个互相联系的问题:生物是不是由进化而来的生物是怎样进化的他提出自然选择学说来说明生物进化的原因和过程。

  但是,达尔文不可能预见到自组织的力量。自从达尔文以来,生物学家一直把自然选择看作是有序的惟一来源。自组织是最近发现的某些复杂系统的固有性质,即某些非常无序的系统自发地“结晶”成为高度有序。当一个开放系统(与外界既有能量又有物质交换的系统)在远离热力学平衡时,无序的非平衡态的稳定性并不像在 * * 衡条件下那样有保证;系统通过与外界环境不断交换物质与能量,当外界变化达到一定的值时,无序有可能失去稳定性。其中的某些涨落可能被放大而使系统达到一种在时间上、空间上或功能上的新状态。这种在远离平衡情况下所形成的有序结构是自发出现的,故称自组织。自组织是生命世界的重要性能之一。计算机模型正揭示这类复杂系统如何能自发地自己组织起来以实现稳定的基因活动循环――所有生命的基本特征。有人认为人类基因库也许是个自组织系统。这样,有机体之所以具有某些特征,也许并不是因为自然选择造成的,而是因为自然选择作用的对象具有自组织特性。人们已经开始认识到,进化是自然选择和自组织相结合的产物。

形成“自组织”应具备的条件是()。

A.无序的非平衡态

B.系统的某些涨落被放大

C.无序系统发生“结晶”

D.系统通过与外界环境不断交换物质能量