患者女，64岁，双膝关节疼痛、畸形，伸直受限10年，加重3个月。查体：双膝关节呈内翻畸形，双膝关节屈曲90°受限，伸直受限，RF（-）。
患者经使用旷置假体后感染控制，二期行手术，下列说法正确的是（）。
A.侧副韧带完整可选用全髁型假体
B.只能选用铰链式膝关节，以避免膝关节不稳
C.侧副韧带损伤侧方稳定性差时选用铰链式膝关节
D.患者感染控制，行膝关节融合术避免再次感染
E.使用原假体再次手术
F.放弃膝关节置换
参考答案：A, C
| 阅读理解。 |
| Take three basins (盆). Fill the first basin with water which is as hot as you are able to bear (承受) with your hands. In the second basin mix hot water with cold water. Fill the third basin with cold water from the tap (水龙头). Now place the basins on the table. Put your right hand in the hot water. Put your left hand in the cold water. You will find that your right hand feels hot and your left hand feels cold. After twenty seconds move both your hands in the lukewarm (微温的) water. What do you feel? Your left hand feels warm and your right hand feels cold. But both hands are in the same basin of water. |
| 1. The writer is talking about ______. |
[ ] |
| A. hot water B. cold water C. basins D. an experiment |
| 2. How many basins are needed in the experiment? |
[ ] |
| A. One B. Two C. Three D. Four |
| 3. Your left hand feels warm and your right hand feels cold because ______. |
[ ] |
| A. they are in the same basin of water B. your right hand is stronger than your left hand C. your left hand is stronger than your right hand D. they were in different basins of water a short time ago |
| 4. After putting your hand in the cold water, you put it in the hot water. You will find ______. |
[ ] |
| A. the water too hot for you to bear B. the hot water feels lukewarm C. the water feels cold D. your hand turns black |
| 5. This experiment shows that ______. |
[ ] |
| A. sometimes our senses deceive (欺骗) us B. we can always get to know whether something is hot or cold by feeling it with our hands. C. hot water and cold water do not mix D. one of our hands is stronger than the other |