问题
单项选择题
关于全脊髓麻醉的叙述，正确的是（）
A.是硬膜外腔阻滞特有的并发症
B.是硬膜外腔阻滞所用麻醉药物进入蛛网膜下腔所致
C.主要表现为呼吸兴奋、血压升高
D.发生缓慢
E.死亡率低
答案
参考答案：B
搜题请搜索小程序“爱下问搜题”
关于全脊髓麻醉的叙述，正确的是（）
A.是硬膜外腔阻滞特有的并发症
B.是硬膜外腔阻滞所用麻醉药物进入蛛网膜下腔所致
C.主要表现为呼吸兴奋、血压升高
D.发生缓慢
E.死亡率低
参考答案：B
| 用方框中所给词的适当形式填空，使短文正确、通顺，每个词限用一次。 | |
students usually study very hard for long 1 . This is very good but it doesn't 2 a lot, for an effective student must have enough sleep, enough food and enough rest and exercise. Every day you need to go out for a walk or visit some friends or some nice places. It's good for your study. When you return 3 your studies, your mind will be refreshed (清醒) and you'll learn more 4 study better. Psychologists (心理学家) 5 that learning takes place this way. Take English learning 6 an example. First you make a lot of progress and you feel happy. Then your language study seems 7 the same. So you will think you're learning 8 and you may give up. This can last for days or even weeks, yet you needn't give up. At some points your language study will again take another big 9 . You'll see that you really have been learning all along. If you get enough sleep, food, rest and exercise, studying English can be very effective and 10 . Don't give up along the way. Learn slowly and you're sure to get good results. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. |