滤料应有足够的（），足够的（）稳定性，有一定的（）和适当的（）率。

某公司对进出口业务的外币采用业务发生时即期汇率进行核算，本月17日该公司将7000美元向银行兑换人民币，当日美元买入价1美元＝6.2740元人民币、中间价1美元＝6.2900元人民币。 要求：计算该笔业务所发生的汇兑损益。（请写出计算过程及结果，只有结果无过程不得分）

阅读理解

     The literal meaning of philosophy is "love of wisdom". But this meaning does not tell us very much.

Unlike the other disciplines, philosophy cannot be defined by what you study, because it is actually

unlimited. Anything can be the subject matter of philosophy: are, history, law, language, literature,

mathematics, and in fact, the other academic disciplines are directly related to philosophy. For this reason

you get a Doctorate(博士学位)of Philosophy (Ph. D. ) in biochemistry, or computer science, or

psychology

     Two broad sub-fields of philosophy are logic and the history of philosophy. Logic is the science of

argument and critical thinking. It provides sound methods for distinguishing good from bad reasoning. The history of philosophy involves the study of major philosophers and periods in the development of

philosophy.  

     Of what use is philosophy? First it is useful in educational advancement. It is necessary for

understanding other disciplines. Only philosophy questions the nature of the concepts used in a discipline,

and its relation to other disciplines. And through the study of philosophy, one develops sound methods of

research and analysis that can be applied to any field.

     There are a number of general uses of philosophy. It strengthens one's ability to solve problems, to

communicate, to organize ideas and issues, to persuade, and to take what is the most important from a

large quantity of data. These general uses are of great benefit in the career field, not necessarily for

obtaining one's first job after graduation, but for preparing for positions of responsibility, management  and leadership later on. It is very short-sighted after all, to take a course of studies only for the purpose of

getting one's first job. The useful skills developed through the study of philosophy have significant long-term benefits in career advancement. No other discipline systematically follows the ideals of wisdom, leadership, and capacity to resolve human conflict

1. What's the meaning of philosophy according to the passage?

A. social sciences              

B. both social and natural sciences  

C. natural sciences           

D. the subject matter of politics

2. What does "discipline" mean in the first paragraph?

A. literature

B. science

C. subject

D. occupation

3. With the study of philosophy, you can        .

A. make progress in your career development    

B. succeed in everything

C. find a good job soon after graduation        

D. become a great leader 

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

A. Philosophy is an independent discipline.

B. The study of philosophy brings you immediate benefits.

C. Logic helps you to become a better thinker.

D. The meaning of philosophy is too limited to define.

5. From the passage, we can conclude        .

A. not all the subjects have to do with philosophy

B. philosophy can be helpful for the study of any other subjects

C. a person will get a Ph. D. if he/she studies philosophy

D. philosophy is the only solution to all the problems in the world

（）に絵が掛けてあります。

A.棚

B.引き出し

C.倉庫

D.壁

某孕妇平素月经规律，末次月经为公历2008年3月9日，其预产期为（）。

A．2008年12月16日

B．2008年12月23日

C．2009年1月16日

D．2009年1月23日

根据已知结果设立产生该结果和未产生该结果的两个组，然后调查原因，这种从果到因的调查方法，称为（）。

A.现情调查法

B.前瞻调查法

C.回顾调查法

D.追踪调查法