以下提供若干个案例，每个案例下设若干道考题。请根据各考题题干所提供的信息，在每题下面的A、B、C、D、E五个备选答案中选择一个最佳答案。
| 女性，70岁，因幽门梗阻行胃大部切除术，术后嗜睡，皮肤苍白，血清钠为125mmol/L,血清钾3.5mmol/L，血红蛋白100g/L，血细胞比容25%。 |
此患者存在的水、电解质平衡紊乱是
A．水中毒
B．高渗性缺水
C．等渗性缺水
D．高钾血症
E．低钾血症
参考答案：A
解析：水中毒患者可见嗜睡甚至昏迷的神经精神症状。实验室检查可见红细胞计数、血红蛋白量、红细胞比容和血浆蛋白量均有降低。
| 完形填空。 | |||
| My brother doesn't like doing exercise. Last night he __1__ again and again. Today my father took him to see a __2__ . The doctor said that my brother had a bad __3__ . He told my father to buy some __4__ and told my brother to have a good rest. __5__ happened to my brother? My brother said he kept the windows __6__ all night. But my father thought that my brother __7__ do more exercise every day. After taking __8__ medicine, he was much __9__ . My mother told us to take good care of ourselves. I will __10__ what my parents said. I will do more sports in the future. | |||
| ( ) 1. A. cough ( ) 2. A. teacher ( ) 3. A. cold ( ) 4. A. water ( ) 5. A. What ( ) 6. A. close ( ) 7. A. may ( ) 8. A. a ( ) 9. A. good ( ) 10. A. forget | B. coughs B. friend B. headache B. medicine B. When B. closed B. can B. an B. better B. remember | C. coughed C. dentist C. toothache C. milk C. Where C. open C. mustn't C. the C. ill C. read | D. will cough D. doctor D. SARS D. hamburgers D. How D. opened D. should D. / D. worse D. write |
