下列哪项不是肾前性氮质血症（） A.失血性休克 B.使用依那普利 C.脱水 D.过度

在下列模式中，能够给出数据库物理存储结构与物理存取方法的是

A．逻辑模式

B．概念模式

C．内模式

D．外模式

在以下几种接入方式中，哪种能够为用户提供最远的传输距离（）。

A.ADSL

B.VDSL

C.SHDSL

D.LAN（100BASE-TX）

美国心理学家伍得渥斯提出的行为表示式中的3个成分是（）

A.刺激、有机体和结果

B.刺激、环境和行为反应

C.环境、有机体和结果

D.环境、有机体和行为反应

E.刺激、有机体和行为反应

阅读理解。

     Arthur Miller(1915-2005) is universally recognized as one of the greatest dramatists

of the 20th century. Miller's father had moved to the USA from Austria Hungary,drawn

like so many others by the" Great American Dream". However, he experienced severe

financial hardship when his family business was ruined in the Great Depression of the

early l930s.

     Millers' s most famous play, Death of a Salesman , is a powerful attack on the American

system, with its aggressive way of doing business and its insistence on money and social

status as indicators of worth. In Willy Loman, the hero of the play, we see a man who has

got into trouble with his worth. Willy is "burnt out" and in the cruel world of business there

is no room for sentiment: if he can't do the work, then he is no good to his employer, the

Wagner Company, and he must go. Willy is painfully aware of this, and at loss as to what

to do with his lack of success. He refuses to face the fact that he has failed and kills himself

in the end.

     When it was first staged in 1949, the play was greeted with enthusiastic reviews, and

it won the Tony Award for Best Play, the New York Drama Critics Circle Award, and

the Pulitzer Prize for Drama. It was the first play to win all three of these major awards.

     Miller died of heart failure at his home in Roxbury, Connecticut, on the evening of February

10,2005,the 56th anniversary of the first performance of Death of a Salesman on Broadway.

1. Why did Arthur Miller' s father move to the USA?______

A. He suffered from severe hunger in his home country.

B. He was attracted by the "Great American Dream".

C. He hoped to make his son a dramatist.

D. His family business failed.

2. The play Death of a Salesman _______.

A. exposes the cruelty of the American business world

B. discusses the ways to get promoted in a company

C. talks about the business career of Arthur Miller

D. focuses on the skills in doing business

3. What can we learn about Willy Loman?______

A. He treats his employer badly.

B. He runs the Wagner Company.

C. He is a victim of the American system.

D. He is regarded as a hero by his colleagues.

4. What is the text mainly about?______

A. Arthur Miller and his family.

B. The awards Arthur Miller won.

C. The hardship Arthur Miller experienced.

D. Arthur Miller and his best-known play.

用树结构表示实体类型及实体间联系的数据模型称为　【2】　。