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问题 单项选择题 A1/A2型题

女性，26岁。阵发性心慌2年，每次心慌突然发生，持续半小时至2小时不等。本次发作时心律齐，200次/分，按摩颈动脉窦心率能突然减慢至正常；心电图QRS波形态正常，P波不明显。诊断为（）。

A.心房扑动

B.窦性心动过速

C.心房颤动

D.阵发性室上性心动过速

E.阵发性室性心动过速

答案

参考答案：D

解析：阵发性室上性心动过速的心电图特点：心率150～250次/分，节律规则；QRS波群形态和时限正常，P波为逆行性，有时可不明显。

完形填空
完形填空。

     By the third year of teaching I'd begun to expect Christmas break more for the school holiday
and less for the excitement of the children. I was teaching fourth grade and my students had made
me__1__. I just had to get through one of the hardest days of the school year.
     The morning bell rang. I walked__2__through the cold into the overly heated school building.
Twentytwo smiling faces__3__me at the school bus stop. I forced myself to __4__ their smiles.
Back into the classroom, they__5__, comparing plans for the__6__. I had to remove one student
from each arm__7__I could take a seat at my desk for my morning duties. Before I could find my
roll book(点名册) my desk was covered with__8__and gifts followed by a__9__of "Merry
Christmas" wishes.
     "Oh, thank you," I must have__10__a million times. Each gift was truly special to me, except
my__11__mood(情绪). It was kind of them to__12__me. After a while, I heard a small nervous
__13__say my name. I looked up to see Brandon standing__14__by my desk, holding a small,
round gift. "This is for you."
"Thank you, Sweetheart." I laid it on my desk with the others."Um, could you__15__it now?"
     I gently tore at the paper and tape. "__16__," he said, "it's breakable." Slowly I opened a small,
green Christmas tree ornament(装饰物), complete with a hook already__17__. It dawned on me
what he had done. Then a nearby student said that he just pulled that off his own tree. I tried to keep
my__18__back.
     Later that day, I sat__19__the ornament in my hands. Was I really so important to this child that
he had searched for something to give me? Now every year as I__20__pull a green Christmas ball
from my ornament box, I remember the deep influence my students have on me.

( )1.A.excited      
( )2.A.eagerly      
( )3.A.watched      
( )4.A.return      
( )5.A.calmed      
( )6.A.study        
( )7.A.before      
( )8.A.letters      
( )9.A.knowledge    
( )10.A.confirmed  
( )11.A.pleased    
( )12.A.talk about  
( )13.A.call        
( )14.A.shyly      
( )15.A.classify    
( )16.A.Careful    
( )17.A.exposed    
( )18.A.trees      
( )19.A.looking into
( )20.A.anxiously   		B．tired      
B．aimlessly  
B．greeted    
B．forget      
B．settled    
B．weekend    
B．when        
B．books      
B．collection  
B．assessed    
B．low        
B．think of    
B．sound      
B．bravely    
B．collect    
B．Dangerous  
B．adapted    
B．hooks      
B．turning over
B．hurriedly   		C．amazed      
C．gently      
C．delighted  
C．ignore      
C．chatted    
C．vacation    
C．after      
C．chalks      
C．series      
C．responded  
C．thrilled    
C．turn to    
C．shout      
C．rudely      
C．open        
C．Patient    
C．adjusted    
C．gifts      
C．giving away
C．delicately  		D．relaxed    
D．heavily    
D．warned      
D．refuse      
D．argued      
D．lesson      
D．because    
D．cards      
D．bunch      
D．explained  
D．angry      
D．connect with
D．voice      
D．sadly      
D．arrange    
D．Hasty      
D．attached    
D．tears      
D．packing up  
D．casually  
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