阵发性室上性心动过速发作时，用刺激迷走神经方法治疗，下列哪项

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问题单项选择题

阵发性室上性心动过速发作时，用刺激迷走神经方法治疗，下列哪项不正确（）

A.Valsalva动作

B.双侧颈动脉窦按摩

C.压迫眼球

D.面部浸于冰水中

E.刺激悬雍垂

答案

参考答案：B

补全对话，情景问答

1. — When's Teachers' Day? — _________________. — What did you do ____________ Teachers' Day? — We ____________ a card ____________ our teacher.
2. — Excuse ____________. How ____________ I get to Jinling Primary School? — Go ____________ this street. Turn ____________ at the ____________ crossing. The school is on your ____________.

填空题

对于长度为n的顺序存储的线性表，当随机插入和删除—个元素时，需平均移动元素的个数为【1】。