在UML的需求分析建模中，用例模型必须与（）反复交流并加以确认。 A.软件生产商 B

在数据库管理系统提供的数据定义语言、数据操纵语言和数据控制语言中，______负责数据的模式定义与数据的物理存取构建。

阅读理解。

     The Blacks are American tourists. They visit in Beijing now. This is their first visit to China. They are going to

stay  in China for three months. They want to visit some big cities and villages. They hope to learn some Chinese,

too.

     Mr. Black is a taxi driver. He likes to drive in Beijing. Mrs. Black is a school teacher. She is visiting a  city school

today and a village school tomorrow. Their daughter is a middle school student. She is going to meet some Chinese

students.

     They are taking a lot of pictures in China. When they return to America,  they are going to show the pictures to

their friends. They want the American people to know more about China.

1. The Blacks are from          .

A. China

B. England

C. Canada

D. the USA

2. The Blacks are staying in          now.

A. England

B. Beijing

C. Shanghai

D. New York

3. Mr. Black is         .

A. a teacher

B. a doctor

C. a taxi driver

D. a worker

4. There are          people in Mr. Black's family.

A. two

B. three

C. four

D. five

5. Why are they going to show the pictures to their friends when they go back to America?

A. Because the pictures are very beautiful.

B. Because they like China.

C. Because they want the American people to know more about China.

D. Because they want the American people to come to China.

治疗华支睾吸虫病的首选药物是（）

A.乙胺嗪

B.奎宁

C.喹诺酮

D.乙胺嘧啶

E.吡喹酮

男，54岁。乙型肝炎史5年，右上腹疼痛一周。检查发现：巩膜黄染，肝肋下4cm，质地坚硬，表现不平。剑突下听到吹风样血管杂音。

最可能的诊断是（）。

A.胆道结石

B.胆囊炎

C.肝炎后肝硬化

D.原发性肝癌

E.胰头癌

利用“道德两难故事法”进行道德教育的心理学家是（）

A.班杜拉；

B.吉布斯；

C.柯尔伯格；

D.皮亚杰