问题 单项选择题

在臂丛神经损伤的临床表现中,以下错误的是()

A.臂丛上干损伤多见

B.C8、T1根性撕脱伤可能出现Horner征

C.臂丛完全性损伤运动障碍表现为手、前臂、上臂肌肉全瘫

D.臂丛神经完全性损伤感觉障碍为手、前臂、上臂感觉完全丧失

E.臂丛下部损伤,多因上肢过度上抬外展造成

答案

参考答案:D

解析:臂丛上干损伤较常见,为颈神经在厄氏点损伤所致,无霍纳综合征。臂丛下部损伤多因上肢过度外展或上抬引起,可出现霍纳综合征。臂丛神经支配上肢所有的肌肉,故完全性损伤出现上肢全瘫,但由于皮肤感觉有交叉支配的情况,完全性损伤仅表现为部分区域的感觉消失,故本题选D。

单项选择题 A型题
阅读理解

阅读理解。

     Researchers are placing robotic dogs (机器狗 )in the homes of lonely old people to determine whether

they can improve the quality of life for humans. Alan Beck, an expert in human-animal relationship, and

Nancy Edwards, a professor of nursing, are leading the animal-assisted study concerning the influence of

robotic dogs on old people's depression, physical activity, and lefe satisfaction. "No one will argue that an

older person is better off being more active, challenged, or stimulated (刺激), "Edwards points out."The

problem is how we promote (使……成为现实) that,especially for those without riends or help. A robotic

dog could be a solution."

     In the study, the robot, called AIBO, is placed for six weeks in the houses of some old people who live

alone. Before placing AIBO in the home, researchers will collect baseline data for six weeks. These old

people will keep a diary to note their feelings and activity before and after AIBO. Then, the researchers will

review the data to determine if it has inspired any changes in the life of its owner.

     "I talk to him all the time, and he responds to my voice," says a seventy-year-old lady, "When I'm

watching TV, he'll stay in my arms until he wants down. He has a mind of his own."

     The AIBOs respond to certain orders. The researchers say they have some advantages over live dogs,

especially for old people. Often the elderly are disabled and cannot care for an animal by walking it or

playing with it. A robotic dog removes exercise and feeding concerns.

     "At the beginning, it was believed that no one would relate to the robotic dog, because it was metal and

not furry." Beck says. "But it's amazing how quickly we have given up that belief."

     "Hopefully, down the road, these robotic pets could become a more-valuable health helper. They will

record their masters' blood pressure, oxygen levels. Or heart rhythms. ASIBOs may even one day have games

that can help stimulate older people's minds."

1. The purpose of Beck and Edwards' study is to _____.

A. understand human-animal relationship

B. make lonely old people's life better

C. find the causes of old people's loneliness

D. promote the animal-assisted research

2. In the research, the old people are asked to _____.

A. note the activities of AIBOs

B. keep AIBOs at home for 12 weeks

C. record their feelings and activity

D. analyze the collected information

3. What is the advantage of AIBO over live dogs?

A. It is easier to keep at home.

B. It can help the disabled people.

C. It responds to all the human orders.

D. It can watch TV with its owner.

4. The author seems to suggest that the future robotic dogs may _____.

A. cure certain diseases

B. keep old people active

C. change people's beliefs

D. look more like real gods