延展申报期限也称补充申报期限，是指在人民法院确定的债权申报期限内，债权人未申报债权的

如果a，b都代表有理数，并且a+b=0，则（　　）

A．a，b都是0

B．a，b之一是0

C．a，b互为相反数

D．a，b互为倒数

在地面上方足够高的地方，存在一个高度d=0.3m的“相互作用区域”（如图中划有虚线的部分）．一个小圆环A套在一根均匀直杆B上，A和B的质量均为m，若它们之间发生相对滑动时，会产生f=0.5mg的摩擦力．开始时A处于B的最下端，B竖直放置，A距“相互作用区域”的高度h=0.2m．让A和B一起从静止开始下落，只要A处于“相互作用区域”就会受到竖直向上的恒力F作用（F=2mg），而“相互作用区域”对处于其中的杆B不产生作用力．设杆B在下落过程中始终保持竖直，且杆的长度能够保证圆环A与杆不会分离．不计空气阻力，取g=10m/s²．求：

（1）杆B刚进人“相互作用区域”时的速度．

（2）圆环A通过“相互作用区域”所用的时间．

（3）A刚离开“相互作用区域”时，圆环A和直杆B的速度．

（4）假如直杆B着地时，A和B的速度刚好达到相同，这一速度是多少？

阅读理解

     BEIJING-Pharmacologist Tu Youyou has become the first scientist on the mainland to win America's

respected Lasker Award for her discovery of a new approach to malaria (疟疾) treatment.

     The 81yearold was presented with the medical prize by the Albert and Mary Lasker Foundation on

September 23, 2011 in New York.

    Tu, a scientist at the China Academy of Chinese Medical Sciences in Beijing, was praised by the jury (评判委员会) for her "drug therapy (治疗) for malaria that has saved millions of lives across the globe,

especially in the developing world," according to a statement on the foundation's website.

    In early 1969, Tu was appointed head of a government project that aimed to eradicate(消灭) malaria,

and it was then that she began applying modern techniques with Chinese traditional medicine to find drug

therapy for malaria.

    After detecting (检测) 380 extracts (提取物) made from 2,000 candidate recipes, Tu and her

colleagues obtained a pure substance called "Qinghaosu", which became known as artemisinin in 1972.

    An artemisininbased drug combination is now the standard regimen (养生法) for malaria, and the

World Health Organization lists artemisinin and related agents in its catalog of "Essential Medicines", said

a statement from the foundation.

     The Lasker Awards are given annually to people who have made major advances in the understanding, diagnosis, treatment, cure and prevention of human diseases since 1945.

     Lasker Awards are known as "America's Nobels" for their knack (熟练技术) of gaining future

recognition by the Nobel committee. In the last two decades, 28 Lasker laureates (得奖者) have gone

on to receive the Nobel Prize, and 80 since 1945.

1. Which of the following statements about Tu Youyou is FALSE?

A. She is the first scientist on the mainland to win America's respected Lasker Award.

B. She is a scientist at the China Academy of Chinese Medical Sciences in Beijing.

C. She is the first scientist in the world to win America's respected Lasker Award.

D. She began applying modern techniques with Chinese traditional medicine to find drug

    therapy for malaria in 1969.

2. Lasker Award is awarded by ________.

A. New York Foundation

B. the Albert and Mary Lasker Foundation

C. Chinese Medical Sciences

D. Albert and Mary

3. What's the influence about Tu Youyou's "drug therapy for malaria"?

A. It has surprised the people in the world.

B. It has reduced malaria.

C. It applied modern techniques with Chinese traditional medicine.

D. It has saved millions of lives across the globe, especially in the developing world.

4. What can we learn from the last paragraph?

A. Lasker laureates can not receive the Nobel Prize at the same time.

B. Lasker laureates can receive the Nobel Prize at the same time.

C. Lasker Award is the Nobel Prize.

D. Lasker Awards are known as "America's Nobels".

5. What's the main idea of the passage?

A. Tu Youyou won Lasker Award for malarial drug discovery.

B. An American won Lasker Award for malarial drug discovery.

C. Americans founded the Lasker Foundation.

D. Tu Youyou discovered artemisinin.

中国公务员增加工资的途径有（）。

A.职务和级别晋升

B.通过考核

C.国家工资标准调整

D.津贴水平调整