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问题 单项选择题

经鼻清醒气管内插管局部表面麻醉时，那种局麻药兼有鼻黏膜血管收缩作用

A．0.25%利多卡因

B．4%可卡因

C．2%～4%利多卡因

D．1%丁卡因

E．0.5%普鲁卡因

答案

参考答案：B

阅读理解

根据短文内容，判断正(T)误(F)。

Last Sunday the Greens went to the movies. They got home very late. Father opened the front door and went into the house. It was very dark, so mother turned on the light. On the way to their bedroom, mother said, “Listen, John! I can hear someone in the bedroom. ” They all stood quietly outside the bedroom. They could hear some voices in the room.

“You are right. ” father said, “There are two men in it. They are talking. ” Then he shouted, “Who’s there?” But no one answered. Father opened the door quickly and turned on the light. The room was empty. Then father found something and laughed. “The TV is still on. I forgot to turn it off this morning!” father said.

小题1:The Greens got home very early.

小题2:On the way to their bedroom, mother heard someone in the bedroom.

小题3:They all stood quietly in the bedroom.

小题4:There were really two men talking in the room.

小题5:Father opened the door slowly and turned on the light.

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单项选择题

紊乱性房性心动过速是指P波频率>100次/分()

A．同一份心电图上有2种或以上形态不同的P波

B．同一份心电图上有3种或以上形态不同的P波

C．心电图同一导联上有2种形态不同的P波

D．心电图同一导联上有2种或以上形态不同的P波

E．心电图同一导联上有3种或以上形态不同的P波
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