发动机试车有几种形式？

一商店把某种品牌的羊毛衫按标价的八折出售，仍可获利20%，若该品牌的羊毛衫的进价每件是100元，则标价是每件______元．

Retirement Age

Retirement is the point where a person stops employment completely．The " standard" retirement age varies from country to country, but it is generally between 50 and 70, according to the latest statistics, 2011．However, for a long time, people have got into an argument about whether the age of retirement should be increased or reduced in their own countries．

There are several arguments for allowing older people to continue working as long as they are able．Many people think that older employees have a large amount of knowledge and experience which can be lost to a business or organization if they are made to retire．Besides, older employees are often extremely faithful employees to and are more willing to implement company policies than the young．A more important point is regarding the attitudes in society to old people．To force someone to resign or retire at 60 or 65 indicates that the society does not value the input of these people and that effectively their useful life is over．

Allowing old people to work indefinitely （无限地）, however, is not always a good policy．Some people took the strong view that age alone is no guarantee of ability．Many young employees have more experience or skills than older staff, who may have been stuck in one area for most of their working lives．Having compulsory retirement allows new ideas in an organization．On the other hand, older people should be rewarded by society for their life' s labor by being given generous pensions and the freedom to enjoy leisure．They can have time to do whatever they like, that is, they can have their own plans or roles and achieve their retirement goals．

With many young people unemployed or frustrated in low-level positions, there are often calls to compulsorily retire older workers．However, this can affect the older individual' s freedom—and right—to work．In my opinion, giving workers more choices over their retirement age will benefit society and the individual．

小题1:According to the passage, older people should go on with work because ____.

A．they will help the business not to fail quickly

B．they have grasped much practical experience

C．they need to have a sense of achievement

D．they want to learn more knowledge小题2:The underlined word "implement" in Paragraph 2 probably means "______".

A．take over

B．work on

C．get rid of

D．carry out小题3:The third paragraph is mainly to tell us that ______．

A．older people can' t do their work well

B．young people usually have new ideas

C．it is better for older people to retire on time

D．older people would like to do something else小题4:Which of the following shows the structure of the passage?

下列关于发票代理印制与领购原则的说法，正确的有（）。

A.发票准印证南国家税务总局统一监制并核发

B.全国统一的发票防伪措施由国家税务总局确定，省税务机关可以根据需要增加本地区的发票防伪措施，并向国家税务总局备案

C.纳税人未按规定保管专用发票和专用设备，不得领购开具增值税专用发票

D.发票领购方式是指批量供应、交旧购新或者验旧购新等方式

E.保证人同意为领购发票的单位和个人提供担保的，应当填写担保书

兵马俑博物馆属于（）

A、遗址类博物馆

B、艺术博物馆

C、历史博物馆

D、科技博物馆

北京的物质文化遗产有（）、（）、（）、（）、天坛。