空气制动系统的动力来源于（）。

产后消化系统的变化正确的是（）。

A.盐酸分泌↑、蠕动↑

B.盐酸分泌正常、蠕动↑

C.盐酸分泌↑、蠕动↓

D.盐酸分泌↓、蠕动正常

E.盐酸分泌↓、蠕动↓

Parents whose children show a special interest in a sport feel very difficult to make a decision about their children’s careers．Should they allow their children to train to become top sportsmen and sportswomen? For many children it means starting schoolwork very young．And going out with friends and other interests have to take a second place．It’s very difficult to explain to a young child why he or she has to train five hours a day, even at the weekend, when most of his or her friends are playing．

Another problem is of course money, In many countries money for training is available from government for the very best young sportsmen and sportswomen．If this help can not be given, it means that it is the parents who have to find the time and the money to support their child’s development and sports clothes, transport to competitions, special equipment, etc．All can be expensive．

Many parents are worried that it is dangerous to start serious training in a sport at an early age．Some doctors agree that young muscles may be damaged by training before they are properly developed．Professional trainers, however, believe that it is only by training when young that you can reach the top as successful sports person．It is clear that very few people do reach the top, and both parents and children should be prepared for failure even after many years of training．

小题1:Where can we most probably find this passage?

A．An advertisement．

B．A diary．

C．A newspaper．

D．A notice board．小题2:What does the underlined phrase “to take a second place ”in the first paragraph mean?

A．to become less important

B．To put it at another place

C．To happen again

D．They are the most important of all the things小题3:Which of the following statements is true according to the passage?

A．It’s easy to make a decision when your children want to take up sports．

B．Most of the students may become top sports men after a long period of training．

C．Early training may damage young muscles．

D．It’s not very expensive for parents to support their children’s development in sports．

儒家认为“德治”是限本的治国之道，理由有（）。

A.道德是国家的根本

B.道德是获取民心的良方

C.道德能成人之美

D.道德可以避免战争

票据利率风险产生的主要因素有（）

A.相关货币市场利率急剧变化

B.人行再贴现政策出现较大变化

C.资金出现暂时短缺

D.票据持有量与其他贷款投放的时间不匹配

直梯或倾斜角大于（）度的斜梯，高度超过5m时，应设弧形防护圈。

A、60

B、75

C、90