问题 单项选择题

男性,18岁。2周前有咳嗽、流清水鼻涕史。1周前双下肢乏力,3天来双下肢行走不能,双上肢不能上举,双手不能持物就诊。大小便正常。体检:肌力双上肢Ⅱ度,双下肢Ⅰ度,肌张力低下,二头肌及膝腱反射消失,病理反射未引出。为明确诊断,最重要的辅助检查是

A.腰椎穿刺、脑脊液常规、生化检查

B.脊柱X线摄片

C.肌电图及神经传导速度测定

D.颈椎CT

E.颈椎MRI

答案

参考答案:A

解析:本例为年轻男性患者,发病前有上呼吸道感染病史,急性起病,临床表现先后出现四肢弛缓性瘫痪,初步诊断倾向于急性多发性神经根神经炎,为明确诊断,最重要的检查是进行腰椎管穿刺术,了解脑脊液有无蛋白一细胞分离现象,也可除外椎管阻塞等病变,本例无外伤及颈背疼痛史,X线及CT检查作用不大,颈椎MRI主要有助于脊髓及椎管内病变的诊断。

问答题
阅读理解

This is the VOA Special English Economics Report.

China has recently been faced with serious issues of product safety. Some cases have brought attention internationally to the increased use of imported ingredients to make food and medicine.

In Panama, medicine made with a poisonous chemical killed or sickened more than one hundred people. A Chinese company had identified it as diethylamide glycol ( [化]乙二醇), a low – cost substitute commonly used in automobile antifreeze(防冻剂).

Some countries have banned Chinese-made toothpaste containing diethylamide glycol. China has now told companies to discontinue its use, even though it says the toothpaste is safe. Another industrial chemical, melamine(三聚氰胺), was found in wheat flour used to make pet food in North America. Thousands of dogs and cats became sick.

The United States has restricted some imports of Chinese seafood because they contained banned substance. And questions have been raised about other products, including children’s toys covered with lead paint.

Chinese officials promised to provide the European Union, the biggest trading partner, with detailed reports on enforcement efforts against unsafe goods.

Meglena Kuneva, commissioner (理事) for consumer protection of the European Union said China should have kept its promise.

China recently closed three companies linked to the Panama and the pet food scare. And itdismissed the former head of its food and drug administration. He was found guilty of corruption (腐败) for approving unsafe drugs. This week, a conference of the State Council approved a proposed special measure on the supervision of food safety. The Xinhua News Agency said it calls for stronger controls over producers, greater responsibilities for government and more serious punishment for illegal activities.

But Chinese officials have accused some foreign media of overstating problems with goods made in China. They say food imports from the United States also fail inspection sometimes. Next Week, American and Chinese food safety officials are planning to hold 5 days of meetings in Beijing to discuss cooperation.

And that’s the VOA Special English Economics Report. I’m Mario Ritter.

小题1:How many cases with safety problems are mentioned in the passage?

A.Six

B.Five

C.Four

D.Three小题2:How was Panama case dealt with afterwards?

A.Three companies linked to it were closed down.

B.The former head of food and drug administration was removed from his position.

C.More serious punishment was conducted for leaders linked to it.

D. Both A and B.

小题3:It can be inferred but not clearly stated that ________.

A.Chinese- made toothpaste is safe

B.the safety of “made in China” is doubted

C.there are safety problems with one more Chinese products.

D.stronger control over Chinese products is in need小题4:The passage is mainly about ________.

A.China is facing product safety problems

B.more controls are taken of Chinese goods

C.overstated problems with Chinese goods

D.China is losing its trade partners