男性，20岁。四肢肌无力4天，无尿便障碍，无发热。查四肢肌力3级，四肢远端痛觉减退，腱反射弱，无病理反射，腰穿正常。首先考虑的疾病是（）
A.吉兰-巴雷综合征
B.脊髓灰质炎
C.周期性瘫痪
D.急性脊髓炎
E.重症肌无力
参考答案：A
解析：本病的诊断要点是病前1～3周有感染史，急性或亚急性起病并在四周内进展的对称性四肢弛缓性瘫痪和脑神经损害，轻微感觉异常，发病第2～3周脑脊液有蛋白-细胞分离现象。
| 阅读理解。 |
| Renting a color television makes more sense than buying. Here's why: 1. The longer you rent (租), the less you pay. Each year the monthly rate is reduced. You can reach a low rate of not much more than $12 a week. 2. Service is fast and free. We can have your set installed (安装) in two days. If anything goes wrong, we'll have it fixed the same day or lend you another set while we're mending it. And don't forget: service and spare parts are free! 3. If you don't have an aerial (天线), we'll install one for you, and that will be free, too. All you have to pay is the installation charge (安装费)! 4. You can choose from all kinds of models, and what's more, if after a certain period of time, and you would like a new model, you can change. How's that for service? 5. No deposit (押金) is needed. You pay only the monthly rental fee. But if you pay in advance, you can save money. Pay twelve months' fees when you begin to hire, and we'll give you a month's hire without charge. 6. If you decide that you want to stop renting and buy the set you have on hire, this can be arranged-with a generous allowance (折扣) for the fees already paid. |
| 1. From the passage we know _______. |
[ ] |
| A. the more you rent, the less you pay B. the lowest weekly rental fee is much more than $12 C. the longer you rent, the less you pay D. if you rent a TV set for a long time, service and spare parts will be free |
| 2. What is the good of paying twelve months' fees when you begin to hire? |
[ ] |
| A. One and a half months' hire free of charge. B. One month's hire free of charge. C. Half a month's hire free of charge. D. One-fourth of a month's hire free of charge. |
| 3. What does "pay in advance" mean? |
[ ] |
| A. You pay the rent for a period of time before you actually get the television. B. You go ahead and pay the rent. C. You pay the rent in front of anyone. D. You will be the first to pay the rent. |
| 4. If you want to rent a color television, _______. |
[ ] |
| A. leasing company (租赁公司) can have your set installed the same day B. you can have a choice of sets to rent C. leasing company will install an aerial for you free of charge D. you must have an aerial |
| 5. This passage is a (an) _______. |
[ ] |
| A. book B. report C. advertisement D. picture |