疑为中枢神经系统病毒感染应采集 A．鼻咽拭子涂抹物 B．粪便 C．血液 D．水疱液

     Nathan Phillips, who will formally begin his freshman year at the University of San Diego(USD) on

Aug. 31, will arrive on campus in an unusual and philanthropic manner.

     Phillips is expected to arrive between 5 p. m. and 6 p. m. Thursday on his bicycle, having pedaled

1,450 miles from Astoria, Ore.

     Phillips combined his desire to complete a long bike ride before entering college with his interest in

helping the children of Uganda.

     He is raising funds for Invisible Children, a San Diegobased organization seeking to end conflicts

afflicting(使苦恼) northern Uganda, the Democratic Republic of Congo and the Central African

Republic and stop the use of children as soldiers.

     Phillips had raised $1,540 before embarking Aug. 11 and hopes to reach $2,000.

     Phillips, who is from Redmond, Washington, visited Uganda during high school and worked in an

orphanage(孤儿院) there. He was also inspired by a presentation by Invisible Children at his high

school.

     "I have been to Uganda and personally gotten to know some of the kids affected by the war,"

Phillips said in a statement released by the university. "I would do anything to help these kids."

     Phillips' new roommate, Kyle Sharp, has joined him for the last 600 miles of the trip. Students and

other members of the USD community are expected to join him for the last 13 miles.

     "Nathan's passionate commitment(恪守承诺) to improving the lives of children more than 8,000

miles away resonates(共鸣) with USD's mission to prepare future leaders to change the world for the

better," Pamela Gray Payton, assistant vice president of public affairs at USD, said in a prepared

statement. "We are delighted to have Nathan as a member of our campus community."

     Supporters from USD and Invisible Children will greet Phillips and his entourage(随从) when they

arrive in front of Founders Hall on campus. The public is invited as well.

1. Which of the following statements about Nathan Phillips is TRUE?

A. Nathan Phillips has been a freshman at the university.

B. Nathan Phillips is an American.

C. Nathan Phillips is an African.

D. Nathan Phillips likes riding a bike.

2. Why does Nathan Phillips finish riding a bike for a long way before going into college?

A. He travels to Uganda.

B. He practises riding a bike.

C. He raises money to help the children of Uganda.

D. He wants to take exercise.

3. How much money does Nathan Phillips expect to collect in total?

A. $1,540.  

B. $2,000.  

C. $3,540.  

D. $2,540.

4. What can we learn from the last paragraph?

A. People like Nathan Phillips.

B. The public invite Nathan Phillips.

C. People support what Nathan Phillips does.

D. Supporters like Nathan Phillips.

(三)阅读下面短文，回答下 * * 题。

1946年诞生的世界上第一台计算机，体积达90多立方米，重30多吨。后来有了半导体，造出了超大规模集成电路，使电子计算机体积大大减小了。但这种集成电路小型化已接近极限，要在这基础上提高其存储和运算速度也越来越难。

由于计算机最基本构件是开关元件，于是专家们设想，假若有机物分子也具备“开”“关”功能，岂不可以造出“有机物计算机”吗后来，科学家发现，半醌类有机化合物分子及蛋白质分子中的氢都具备“开”“关”这两种电态功能。因此，从理论上说，只要用半醌类有机化合物分子或蛋白质分子作元件，就能制造出“半醌型”或“蛋白质型”的计算机。人们把它们称为“生物计算机”或“分子计算机”。

生物计算机具有“半永久性”。它有许多优点：一是密集度可达现在集成电路的10万倍；二是运算速度可达半导体开关件的1000倍以上；三是这种由生物分子构成的“生物芯片”也同一般生物一样，具有“自我修复”功能，出了故障可“自我修复”，所以这种生物计算机可靠性高，经久耐用；四是生物元件是用化学能工作，所需能量甚少，不存在元件发热问题。

生物计算机的研制始于20世纪60～70年代。美国1983年11月召开了专门学术会议，对生物计算机的研制从理论到实践进行了深入探讨。 日本此项研究由“未来电子仪器科研协会”和通产省指导进行。英国也拨款3000万英镑用于生物计算机的研究开发。

目前，生物计算机的研制处于初始阶段，专家们预计，下世纪初叶，可望有突破性进展，并使数字电子计算机产生新的功能。无疑，生物计算机一旦问世，将是计算机科学领域的一次新的革命。

根据文义，文章最适合的题目是（）。

A．“半永久性”的计算机

B．计算机科学的新革命

C．生物计算机的原理

D．未来的科技之花——生物计算机

患者，女，36岁。饮酒后中上腹持续性疼痛9小时，呕吐2次来院急诊。既往体健。体检：体温37.8℃，上腹偏左压痛，伴轻度肌紧张。

如为急性胰腺炎，下列哪项治疗方法是错误的（）

A.大剂量广谱抗生素

B.应用阿托品或山莨菪碱（654-2）

C.禁食、补液

D.维持水与电解质平衡

E.静脉滴注西咪替丁

规范性公文标题的时间是( )。

A．公文发布的时间

B．.公文撰写的时间

C．公文打印的时间

D．公文讨论的时间

速冻冰箱的质量标准？