心源性脑栓塞时，栓塞多发生在（） A.大脑前动脉 B.大脑中动脉 C.大脑后动脉 D

已知甲醛（HCHO）分子中的4个原子共处于同一平面上。下列分子中所有原子不可能同时共存于同一平面上的是(    )

检验检疫证书须经公证机构公证，方可作为仲裁或诉讼时有效的证明文件。（）

女，32岁。6个月前眼睑下垂，复视，2个月前劳动时四肢易疲劳，吞咽困难。查体：双眼睑下垂，眼球各个方向活动均受限，锥体束征阴性，无感觉障碍，诊断首先考虑为（）

A.进行性肌营养不良

B.重症肌无力

C.急性感染性多发性神经根炎

D.椎基底动脉供血不足

E.以上均不正确

     Directions: Read the following passage. Translate the underlined sentences into English or Chinese.

Write your answers on your answer sheet.

     Tang Ning, a successful businesswoman, works as a Goodwill Ambassador for the UN. (1)She feels

honored to have been able to take on this role. She says that the UN is an international group which was

set up just after the Second World War, and now (2)联合国共有191个国家. It has a charter which

sets out its main purposes. (3)One of the jobs of the UN is to protect human rights and improve

international laws. The UN helps with many problems such as lack of education, lack of food, wars,

poverty, and diseases such as AIDS and so on. (4)联合国触及世界各地每个人的生活.There seems

to be many victims of natural disasters as well as civilian victims of wars and conflicts around the world.

People like Tang Ning visit UN projects and encourage people working in remote places. At a UN

meeting in 2000, eight development goals were set up. (5)One of the aims of the UN is to make sure

that fresh drinking water is accessible to everyone by 2015.Another is to ensure all children complete

primary education.

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