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参考答案：为皮肤上局限性水肿隆起，突然发生，迅速消退，不留痕迹。

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              The Summit 2009
     World leaders from about 20 countries met at the London Summit (峰会) 2009 on September 2nd, Thursday and reached an agreement of $1,100,000 million to fight against the worst economic crisis(经济危机). They said they would take more tight control of the financial rules(金融管制) to stop it happening again.
     Chairman Hu Jintao on behalf of(代表) the Chinese government attended the summit and played an important role (角色) in it.		                  The Shanghai Tower
     The Shanghai Tower has some famous neighbours. It's next to the 1615-foot-tall Shanghai World Financial Center that in the second tallest completed skyscraper(摩天大楼) in the world. So far, the first is Taiwan's 1670-foot-tall Taipei 101. The Tower is also next to the Jin Mao Building, which is the fifth tallest in the world at 1381 feet high. At 2073 feet, the Shanghai Tower will top(超过) all the three. The design work began in 1993 and it will be finished in 2013.
             The Grand Hotel Beijing
     The Grand Hotel Beijing is a five-star hotel. It is within the red wall to the east of the Forbidden City and it near Tian'anmen Square and Wangfujing shopping street. All of the guest rooms are made in traditional Chinese imperial style(中国传统的皇室风格). It's the right place where you can experience (经历) Royalty(王族) and enjoy and the honor that few people can do.
     Add: No.35 East Chang'an Avenue, Beijing,R.R.China 100006
      Tel: (86-10)65137778
     Fax:(86-10) 65130048
     E-mail:sales@grandhotelbeijing.com 		             Chinese delay US tour plans
     Chinese tourists delayed(推迟) trips to the Untied States yesterday as the government warned on traveling to countries hit by H1N1 flu.
     Zhang wei, manager of the China Internatioal Travel Service's tourism office. said the agency(旅行社) had been full of fears of being infected(被传染) by such a flu.
     The flu may have killed at least 83 people in Mexico. Confirmed (确诊) or suspected (疑似) cases have been reported first in the US, Brazil, Canada, Spain and New Zealand, then in Japan and several provinces(省份) in China.
1. Where was the Summit 2009 held?
A. In London
B. In Beijing
C. In New York
D. In Pairs.
2. Which of the following is NOT a news report?
A. The Summit 2009.
B. The Shanghai Tower.
C. The Grand Hotel Beijing.
D. Chinese delay US tour plans.
3. According to Passage 2, the tallest completed building in the world is _______.
A. the Shanghai Tower.
B. the Taipei 101.
C. the Jin Mao Building.
D. The Shanghai World Financial Center
4. According to the passage, the last continent(洲) the H1N1 flu spread to was ________.
A. America
B. Africa
C. Europe
D. Asia
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单项选择题

患者男性，21岁。咳嗽伴午后低热一月余。体检：体温37.9℃，呼吸音较粗，叩诊左肺清音界上移。实验室检查：WBC 6.2×109/L，ESR 96mm/h。X线检查显示左侧肋膈角消失。该患者无吸烟史。

LD酶分子是由几个亚基组成的

A．2个

B．3个

C．4个

D．5个

E．6个
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