当链路的幀计数长度a=49时，简单的停等协议的线路利用率几乎等于（）。A.1 B.1

观察20例麻疹疫苗接种后的抗体平均增加水平，宜用哪个公式（）

A.

B.

C.

D.

E.

Jenny Bowen, an American living in Beijing, was selected as the only American to carry the 2008 Beijing Olympic torch on Chinese soil．She and seven other non-Chinese winners had been chosen from 262 applicants from 47 countries in a contest organized by Chinese computer maker Lenovo Group and the official English-language newspaper, China Daily．When Bowen ran with the Olympic torch, she was not only representing the United States, but also representing thousands of Chinese orphans (孤儿).

Bowen, a mother of two adopted (收养) Chinese daughters, is director of Half the Sky Foundation, an organization which was founded in 1998 and aims to enrich the lives of orphaned children in China．In nearly 10 years, Bowen and Half the Sky have touched the lives of over 13,000 children．Half the Sky is now present in 36 welfare institutions in 28 Chinese cities． About 4,000 children are active in the program, which provides trained staff, educational tools, medical support and care for orphans.

Bowen hoped that running with the Olympic torch would help draw attention to the children in China．She was among 19,400 runners who carried the flame along an 85,000-mile, 130-day route across five continents．Beijing organizers say it was the longest torch relay in Olympic history.

Like Bowen, the seven other non-Chinese winners, including a German engineer and a Venezuelan designer, live in China．Other countries represented were the Philippines, Colombia, India, Japan and Russia.

According to Olympic organizers, candidates (候选人) were selected based on an online vote, committee selection, their “love of Chinese culture and history” and devotion to “communicating information of a real China to their native countries”．Each runner carried the torch for 200 meters on Chinese soil.

1．Bowen hopes that being a torch runner would help ________.

A．collect educational tools, medical support, etc, for orphans

B．make Half the Sky Foundation well known

C．draw special attention to orphans in China

D．communicate information of America

2．According to the text, Jenny Bowen ________.

A．is interested in Chinese sports

B．founded the organization of Half the Sky

C．has adopted 13,000 children during 10 years

D．loves Chinese culture and history

3．Which of the following about the 2008 torch relay is WRONG?

A．The contest for its runners is organized by Lenovo Group and China Daily.

B．It has eight foreign runners, including an American, a German and a Venezuelan.

C．It will be the longest relay with the most runners in Olympic history.

D．It will be an opportunity to communicate information of a real China to the world.

4．What’s the best title for the passage?

A．Happy Life of a Great US Woman in China

B．A US Woman Carrying 2008 Olympic Torch in China

C．The Development of Half the Sky Foundation

D．The Longest Torch Relay in Olympic History

下面是一篇“中国首届全球通手机短信文学大赛“散文类获奖作品”，请你以评委的名义写几点“获奖理由”。（40字左右）

　　母亲这辈子只识三个字，那就是她的名字。母亲这辈子只做一件事，那就是劳动。母亲这辈子只有一个愿望，那就是让三个孩子走出这山。母亲这辈子唯一的欣慰，那就是她的孩子秉承了她的执著和坚韧。

获奖理由：________________________________________________

2014年内蒙古产煤9.9亿吨，占全国产量的25.6%，原煤产量居全国第几位？

当使用光谱分析仪测量OTU盘的－20dB谱宽时，若仪表上Res可选择0.05nm\0.07nm等数值，在不同选择条件下其－20dB谱宽值也不同，那么最后的结果应以Res值为（）时为准。

A.0.05nm

B.0.06nm

C.0.07nm

D.0.08nm