如果债券的利息在到期时间内平均支付，支付的频率加快，债券价值就会（）。 A．上升 B

行政法治原则是指导行政法的立法和实施的基本原则，它具体可以分解为( )。

A．行政合法性原则、行政自然性原则、行政改革性原则

B．行政合理性原则、行政决策性原则、行政组织性原则

C．行政合法性原则、行政合理性原则、行政应急性原则

D．行政管理原则、行政沟通原则、行政控制原则

There seems never to have been a civilization without toys, but when and how they developed is unknown．They probably came about just to give children something to do．

In the ancient world, as is today, most boys played with some kinds of toys and most girls with another．In societies where social roles are rigidly determined, boys pattern their play after the activities of their fathers and girls are being prepared, even in play, to step into the roles and responsibilities of the adult world．

What is remarkable about the history of toys is not so much how they changed over the centuries but how much they have remained the same．The changes have been mostly in terms of craftsmanship, mechanics, and technology．It is the universality of toys with regard to their development in all parts of the word and their persistence to the present that is amazing．In Egypt, America, China, Japan and among the Arctic（北极的） people, generally the same kinds of toys appeared．Variations depended on local customs and way of life because toys imitate their surrounding．Nearly every civilization had dolls, little weapons, toy soldiers, tiny animals and vehicles．

Because toys can be generally regarded as a kind of art form, they have not been subject to technological leaps that characterize inventions for adult use．The progress from the wheel to the cart to the automobile is a direct line of ways up．The progress from a rattle （拨浪鼓） used by a baby in 3,000 BC to one used by an infant today, however, is not characterized by inventiveness．Each rattle is the product of the artistic tastes of the times and subject to the limitations of available materials．

71．The reason why the toys moat boys play with are different from those that gills play with is that _____.

A．their social roles are rigidly determined

B．they like challenging activities

C．most boys would like to follow their fathers' professions

D．boys like to play with their fathers while girl with their mothers

72．One aspect of "the universality of toys" lies in the fact that _____．

A．the basic characteristics of toys are the same all over the world

B．technological advances have greatly improved the durability of toys

C．the exploration of the universe has led to the creation of new kinds of toys

D．the improvement of craftsmanship in making toys depends on the efforts of universities

73．Which of the following is the author's view on the historical development of toys?

A．Toys are playing an increasingly important role in shaping a child's character．

B．The toy industry has witnessed great leaps in technology in recent years．

C．The craftsmanship in toy - making has remained essentially unchanged．

D．Toys have remained basically the same all through the centuries．

74．Regarded as a kind of art form, toys _____．

A．reflect the pace of social progress

B．are not characterized by technological progress

C．follow a direct line of ascent

D．also appeal greatly to adults

75．The author uses the example of a rattle to show that _____．

A．it often takes a long time to introduce new technology into toy - making

B．even the simplest toys can reflect the progress of technology

C．even a simple toy can mirror the artistic tastes of the time

D．in toy - making there is a continuity in the use of materials

公文制版时对版面的要求误差不超过：

A．1mm

B．1.5mm

C．2mm

D．2.5mm

油动机活塞组装时，要求活塞上相邻的两个胀圈对口应错开120°～180°。（）

制作和销售假文凭假证件，已经成为社会的一大公害。公安和司法部门对此进行了多次突击整治，破获了一批窝点，惩治和宣判了一批罪犯。但是，社会上制作和销售假文凭假证件的势头并未见多大扭转。
如果上述断定是真的，则以下哪项断定也一定是真的
Ⅰ．假文凭假证件的买方市场依然存在。
Ⅱ．所破获的制假销假窝点只占这样的窝点中很小的比例。
Ⅲ．文凭和证件缺乏有效的辨伪设施。

A．只有Ⅰ。
B．只有Ⅱ。
C．只有Ⅰ和Ⅱ。
D．只有Ⅰ和Ⅲ。