用于治疗溃疡性结肠炎（） A．抑肽酶 B．水杨酸偶氮磺胺吡啶 C．甲氧氯普胺（胃复安

橡胶塑炼程度越深，橡胶大分子链遭受破坏越大，降低了制品的耐老化性能。

胸膜摩擦音在下列何部位听诊最易听到（）

A.双肺底

B.双肺尖

C.前下侧胸壁

D.双 * * 上部

E.双肩胛下部

阅读短文，并按照题目要求用英语回答问题。

     In college, Spring Break (春假) is usually associated with the beach, parties and sleepless nights, bringing

about relaxation, free time and friends. Students who wish to spend their break doing something productive

and rewarding, however, may choose to participate in the Alternative Break Program. It places college students

in communities both at home and abroad.

     The Program allows students to take part in various projects dealing with issues such as literacy (识字),

homelessness and the environment. It includes helping kids with their lessons, raising money for families in

need and collecting data for environmental research.

     The hope is that, by getting themselves involved in different environments, students will have the

opportunity to learn about members of communities and broaden their view. In turn, they will incorporate (融

合) their experiences and lessons learned into their own communities. In a word, the Program aims to

encourage students to be active citizens and engage themselves in making a difference in society.

     In the spring of 2006, about 36,000 students in the USA participated in the Alternative Break Program.

     Samantha Giacobozzi, now director of the Program, has been on five alternative break trips herself,

including trips to New Orleans, India and Dominican Republic. "I was a student who went on alternative break

trips and had my life totally transformed by that experience," she said. "Every year, we meet many students

who have attended the Program. You can see changes in their life that are connected with their alternative

break experiences."

     The Program began in 1991. Today, it has become increasingly popular with college students in the United

States.

1. Who may choose to participate in the Alternative Break Program? (No more than 10 words)

    _____________________________________________________________________________________

2. What is the aim of the Program? (NO more than 15 words) 

    _____________________________________________________________________________________

3. What is the meaning of the underlined word "transformed" in Paragraph 5? (1 word) 

    _____________________________________________________________________________________

4. What is Samantha's attitude toward the Program?(No more than 10 words)

    _____________________________________________________________________________________

5. If you take part in the Program, which project are you interested in? And why? (No more than 25 words) 

    _____________________________________________________________________________________

长度为250mm的管钳夹持管子的最大外径是（）mm。

A.20

B.25

C.30

D.40

数据表明，1851年至1871年的英国女性在商业、公共管理、医药和教育领域受雇用的人数从95，000人增加到138，400人，增长率达44．9%。1851年至1911年女性职员从2，000人增加到166，000人，占职员的比例从2%增加到20%。这种变化最能说明（）

A.对外殖民扩张，男性远离故乡

B.民主政治进步，女权意识增强

C.科学技术发展，妇女思想解放

D.工业革命完成，妇女角色改变