腰麻平面达T4,心率减慢的主要原因是()
A.支配心脏交感神经节前纤维阻滞
B.血压下降
C.右房压下降
D.窦弓反射
E.肾上腺素能神经纤维阻滞
参考答案:A
根据句子意思,每空填一个英语单词。
1. What's this in E______?
2. How do you s______ book?
3. Is that your e______?
4. This is her w______.
5. Is that a pencil s______?
6. What is your l______ name?
7. This is my school ID c______.
8. His f______ name is Tom.
9. What's your p______ number?
10. It is my r______.
在待排序的元素序列基本有序的前提下,效率最高的排序方法是( )。
A.冒泡排序
B.选择排序
C.快速排序
D.归并排序