问题 单项选择题

发作性四肢无力

A.帕金森病
B.周期性瘫痪
C.多发性神经病
D.腔隙性脑梗死
E.重症肌无力危象
易导致下列症状的疾病是

答案

参考答案:B

解析:周期性瘫痪是一组与钾离子代谢有关的疾病,临床特点为反复发作的骨骼肌弛缓性瘫痪或力弱,持续数小时至数周不等,发作间期一切正常。

完形填空
完形填空。
     It was very late when we came out of the cinema. We knew the last train would leave   1   11:15, so we
ran as   2   as we could to the station. It was just after 11: 15 when we   3   the station, but the trains often
leave a little   4   and there was a train standing at Platform 1(第一站台), so we got in. We   5   for half an
hour, then we got   6   . We found the ticket collector and asked him   7   the train was going to leave.
     "Tomorrow morning at six o clock," he told us. 
     There were   8   taxis outside the station.   9   we walked home. It  10  us nearly two hours. The next
morning we felt very tired.
(    )1. A. in          
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(    )7. A. how         
(    )8. A. no          
(    )9. A. but       
(    )10. A. spent    
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B. cost      
C. at         
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C. why        
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单项选择题