如果商品A和商品B是替代品,则商品A的价格下降将造成( )A.A的需求曲线向左移动

题型:单项选择题

问题:

如果商品A和商品B是替代品,则商品A的价格下降将造成( )

A.A的需求曲线向左移动,B的需求曲线向右移动

B.A的需求曲线向右移动,B的需求曲线向左移动

C.A的需求曲线向左移动,B的需求曲线向左移动

D.A的需求曲线向右移动,B的需求曲线向右移动

考点:普通考研金融学硕士联考(2011年1月停考)金融学硕士联考
题型:单项选择题

关于信息比率中的跟踪误差的说法,不正确的是()。

A.反映了积极管理的风险

B.是基金收益率与基准组合收益率之间的差异收益率的标准差

C.信息比率越小的基金其表现要好于信息比率越高的基金

D.信息比率越大,说明基金经理单位跟踪误差所获得的超额收益越高

题型:单项选择题

阅读理解

     Today,I read an interesting article about television viewing.In one experiment,families were paid to stop watching TV for either a week or a month.Many could not complete the task and some families quarrelled or even fought.It was quite interesting and now I will say something about TV.

    After TV became a product most families could afford,people bought and started to watch their new

TVs.Both adults and children became less creative in problem solving,less able to focus on tasks,and less

tolerant of flexible time.

     In my family,we grew up with the TV on.Every weekend,we watched Gun Smoke and Bonanza

together as a family.TV provides us with a comfortable background when we want to learn a foreign

language at home,and it entertains us cheaply with live action sports,incomparable performing arts and

important events of the world.In addition,it educates us about everything from the cells in our body to the

galaxies in the universe.

     Perhaps it's not even practical to live without television unless our views change unexpectedly as we get older.I don't think that TV damages us so much as it robs us of time that could be spent doing other things such as learning new skills,getting some exercise or doing volunteer work.

     I was lucky to have a family that watched TV together.Today there seems to be a TV in every room of the house and there's no need to agree on a program to watch.To watch TV or not is more of a question

for adults than for us,and even though we all say we want to cut down the time we spend in front of the

tube,we never really do.TV_has_us_hypnotized!

1. The experiment in Paragraph 1 shows________.

A. how interesting watching TV is

B. how much people like watching TV

C. whether people like watching TV

D. why people give up watching TV

2. After most families could afford a TV,they________.

A. got more active at work

B. found it easier to solve problems

C. became more independent of TV

D. fixed less attention on tasks

3. From Paragraph 3,we can learn that________.

A. the author likes to spend weekends watching TV by himself

B. watching TV too much prevents the author from growing up well

C. TV programmes bring only fun to the author and his family

D. the author and his family get a lot of valuable experience in watching TV

4. According to the author,which of the following is TRUE?

A. It is a waste of time to watch TV.

B. We benefit little when we watch TV.

C. It is hard to live without television.

D. We change our views as we live with television

5. The underlined sentence in the last paragraph implies that________.

A. we depend too much on TV

B. watching TV makes us united

C. TV robs us of valuable time

D.TV changes our daily life

题型:单项选择题

膜电位突然由静息电位改变为0mV时

A.Na+通道开放,产生净Na+内向电流
B.Na+通道开放,产生净Na+外向电流
C.Na+通道开放,不产生净Na+电流
D.K+通道开放,不产生净K+电流

题型:单项选择题

国家对严重污染大气环境的落后生产工艺和严重污染大气环境的落后设备实行( )。

A.淘汰制度

B.限期改造制度

C.禁止使用制度

D.禁止销售制度

题型:单项选择题

盾构始发掘进时,必须收集哪些参数?

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