大学生志愿者参加社会实践活动所起到的积极作用表明[ ] A．人们在社会实践中创造

我国玉米期货的最小变动价位是（）元／吨。

A.2

B.5

C.10

D.1

Are you nervous about climbing because you think it's too dangerous? Do you feel you're not fit enough to climb? Do you know how to start climbing?

Let's consider the idea that climbing is dangerous．Being afraid is natural, but if you use suitable ropes and other climbing equipments you will feel completely safe．Climbers are usually very careful because they know what they are doing is dangerous．Accidents happen, but when they do, they tend to attract a lot of publicity．As a result, people think there are many more accidents than there are in reality．

You cannot expect to start climbing straight away．Climbing is a challenge and challenges take time．It is necessary first of all that you achieve a good level of fitness．Begin as soon as you become interested in climbing? go to the gym, go swimming, take up jogging and continue to do so throughout your training period．

Discover as much as you can about climbing．Visit the library and find book, especially for beginners or buy climbing magazines and look for articles which describe your situation．Look up information on the Internet．Find out about equipment, methods and places to go．

Next, take a course on a climbing wall．There are plenty of climbing walls all over the country which have trained and qualified people as instructors．Call your local leisure centre to find out if there is one in your area. These training sessions are a quick way to get experience and you are likely to meet other beginners. After this, you can do an outside course of join a club where you can meet climbers of all abilities and eventually join in group-climbing events.

At first you may not understand the importance of a good training period, but after you have completed your first climb and you are standing safely at the top of a rock feeling thrilled, then you will know it was the right thing to do.

小题1:The article is written by           .

A．a doctor

B．an experienced climber

C．a beginner

D．a fitness instructor小题2:The writer thinks a new climber should          .

A．begin by becoming fit

B．have the courage to meet the challenges

C．be aware of the causes of the accidents

D．do enough sports to get interested in climbing小题3:By climbing walls you can        .

A．join a club you like

B．gain controlled experience

C．become qualified instructors

D．take part in group-climbing events小题4:The underlined word “it” in the last paragraph probably means     .

A．the climb

B．the training

C．the equipment

D．the achievement

下列各项，不属于藿香正气散组成药物的是（）

A.白芷

B.苍术

C.苦桔梗

D.半夏曲

E.大腹皮

倒转褶曲

城市轨道交通基本建设程序中，属于投资阶段的有（）。

A.工程勘察设计

B.工程施工

C.试运行

D.试运营

E.竣工验收