在Access中；数据类型主要包括：自动编号、文本、备注、数字、货币、日期/时间、是

美国罗斯福“新政”是对资本主义经济制度的创新和发展，其成功的因素在于

①由资本主义制度的先进性决定的 ②由美国国情决定的

③由美国强大的经济实力和民主传统决定的 ④借鉴了社会主义国家计划经济的部分经验 [ ]

A．①②③

B．②③④

C．①②④

D．①②③④

阅读理解

     Live__the__"American__Dream"

     What is it: Work & Travel USA

     Who are qualified: Fulltime college students, above 18 years old

     About the program: Application for the 2009 Work & Travel USA program has just started.

It's an 8～16 weeks' summer program for college students to work and travel in the U. S..

Employers include Boeing, Hilton Hotel and 7Eleven. For next summer, about 3,500 positions are

open to Chinese students. Applicants must pass a language test and sometimes an interview, and pay

a registration fee to join the program.

      (source : www. Cultureexchange. org)

     Hundreds__needed__by__Volkswagen

     What is it: Shanghai Volkswagen jobs

     Who are qualified: College students graduating in 2009

    About it: Shanghai VW offers over 300 positions from engineering to marketing to college students

graduating in 2009. Applicants should have an excellent academic record, CET6 or the same level

language certificate in German, and good computer skills.  Campus talks will take place in Shanghai,

Changchun, Harbin, Wuhan, Changsha, Nanjing, Beijing and Xi'an from October.

     (source: campus chinahr. com/2009/pages/csvw)

     Xiaonei__looking__for__graduates

     What is it: Oak Pacific Interactive (OPI) internships (实习)

     Who are qualified: College juniors and firstyear postgraduate students

     About it: OPI is now offering internship positions for test engineer, development engineer and

assistant to the director of corporate culture. For engineering positions, candidates should major

in computer science or a related field, have communication ability and be familiar with various

development languages. For assistant to the director positions, candidates should be adept in document

writing, activities organizing and office software.

     (source: campus. xiaonei. com)

1. These advertisements are most probably advertisements ________. 

A. on the Internet intended for the general public to read

B. in a newspaper intended for large companies to read

C. on the Internet intended for college students to read

D. in a newspaper intended for college students to read

2. The opportunity of ________ is offered only to college students graduating in 2009.

A. working in America    

B. traveling in America

C. positions in VW        

D. OPI internship

3. If you want to apply for assistant to the director positions you must ________. 

A. be good at document writing

B. study computer science

C. have communication ability

D. be familiar with various languages

如图所示，在离地面高为H处以水平速度v₀抛出一质量为m的小球，经时间t，小球离水平地面的高度变为h，此时小球的动能为E_K，重力势能为E_P（选水平地面为零势能参考面）．下列图象中大致能反映小球动能E_k、势能E_P变化规律的是（　　）

A．

B．

C．

D．

目的基因导入受体细胞后，是否可以稳定维持和表达其遗传特性，只有通过鉴定和检测才能知道。下列属于目的基因检测和鉴定的是（）

①检测受体细胞是否有目的基因

②检测受体细胞是否有致病基因

③检测目的基因是否转录mRNA

④检测目的基因是否翻译蛋白质

A.①②③

B.②③④

C.①③④

D.①②④