三相异步电动机铭牌上标出的额定电压是（）。A、相电压的有效值 B、线电压的有效值 C

下列经济业务或事项应通过“投资收益”科目核算的内容有()

A.企业处置交易性金融资产、交易性金融负债、指定为以公允价值计量且其变动计入当期损益的金融资产或金融负债、可供出售金融资产实现的损益

B.企业的持有至到期投资在持有期间取得的投资收益和处置损益

C.长期股权投资采用成本法核算的，被投资单位宣告发放的现金股利或利润中属于投资后本企业享有的部分

D.长期股权投资采用权益法核算的，资产负债表日根据被投资单位实现的净利润或经调整的净利润计算应享有的份额

E.处置采用权益法核算的长期股权投资时，应按处置长期股权投资的比例结转原计入“资本公积—其他资本公积”科目的金额

已知x=-1是方程x²+mx-5=0的一个根，则m=______，方程的另一根为______．

阅读理解。

阅读下面文章并根据题目要求回答问题。

     The world's first subway was built in London in 1863. At the time, the government was looking for a way

to reduce traffic problems. The poor areas of the city were so crowded with people. So the officials decided

to make it possible for workers to live outside of London and travel easily to work each day. If people had a

convenient way to get to and from work, they would live outside of the city and this would help reduce the

pressure. From these problems, the idea of the London Underground was born.

     The plans for building the Underground met with several problems, but the first track was finally opened in

January,1863. A steam train pulled the cars along the first underground track which was six kilometers long.

About 30,000 people got on the subway the first day. They were treated to comfortable seats and pleasant

decorations inside the cars. However, the smoke from the engine soon filled the air in the tunnels. Fans had to

be put in the tunnel later to keep the air clean enough for people to breathe. Even with its problems, riding the

Underground did become popular. It carried nine million riders in its first year.

     Modem subways have come a long way since the early days of the London Underground.

     Today there are more than one hundred underground systems around the world. Shopping malls built in

traffic stations have helped the popularity of subways. Nowadays many stations include underground

department stores, supermarkets and restaurants. Shoppers never have to go above ground!

1. What is the best title for this passage?

___________________________________________________________________________

2. Why did the British government decide to build the London Underground?

___________________________________________________________________________

3. When was the first track opened?

___________________________________________________________________________

4. What does the writer mean by saying "Shoppers never have to go above ground!" ?

___________________________________________________________________________

卢梭在《论人类不平等的起源和基础》中说道：“我认为，在人类的一切知识中，最有用但也最不完善的知识就是关于人的知识。”马克思的唯物史观破解了人是什么这一“斯芬克斯之谜”，马克思在《关于费尔巴哈的提纲》中指出，人的本质在其现实性上是

A．自然属性和社会属性的内在统一

B．所有人共同属性的概括

C．一切社会关系的总和

D．自由理性的外化

（）需要专用的读卡设备，才能读取卡上的存储数据。

A.IC卡

B.ID卡

C.RF卡

D.AD卡