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问题 单项选择题 A1/A2型题

硬膜外阻滞的神经并发症不包括（）。

A.脊髓压迫

B.全脊麻

C.操作损伤

D.脊髓前动脉栓塞

E.粘连性蛛网膜炎

答案

参考答案：B

解析：全脊麻是大量局麻药误入蛛网膜下隙后引起的广泛感觉和运动阻滞，不是神经损伤。

单项选择题

The human nose is an underrated tool. Humans are often thought to be insensitive smellers compared with animals, (51) this is largely because, unlike animals, we stand upright. This means that our noses are (52) to perceiving those smells which float through the air, missing the majority of smells which stick to surfaces. In fact, (53) , we are extremely sensitive to smells, even if we do not generally realize it. Our noses are capable of (54) human smells when these are diluted to far below one part in one million.

Strangely, some people find that they can smell one type of flower but not another, (55) others are sensitive to the smells of both flowers. This may be because some people do not have the genes necessary to generate (56) smell receptors in the nose. These receptors are the cells which sense smells and send (57) to the brain. However, it has been found that even people insensitive to a certain smell at first can suddenly become sensitive to it when (58) to it often enough.

The explanation for insensitivity to smell seems to be that the brain finds it (59) to keep all smell receptors working all the time but can (60) new receptors if necessary.

58().

A.subjected 

B.left 

C.drawn 

D.exposed
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单项选择题

在“乔哈里窗”中，自己不知道，但别人知道的部分，也是需要开发的部分称为（）

A、“公开我”

B、“隐私我”

C、“潜在我”

D、“背脊我”
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