问题 单项选择题

4岁患儿,高热6小时,伴头痛,频繁呕吐,腹泻3次为稀水样便。查:T39℃,BP60/30mmHg,精神萎靡,全身散在大小不等瘀斑,心肺未见异常。CSF检查:细胞数15000×106/L,蛋白微量,葡萄糖2.2mmol/L,该患儿可能的诊断是()

A.败血症,感染性休克

B.流行性脑脊髓膜炎

C.流行性乙型脑炎

D.中毒型细菌性痢疾

E.化脓性脑膜炎

答案

参考答案:E

解析:分析:本例“突发高热、头痛、频繁呕吐、血压下降、瘀斑”提示化脑,“CSF检查”也支持化脑诊断。

阅读理解
阅读理解。
    David's got a text message from his friend Sam. Can you understand it?
    7,15      20,15      20,8,5      16,1,18,11
    This message was in code (密码, 代码). How many letters are there in the English alphabet?
Twenty-six. So can you read it now?
A   B   C   E   F   H   I   K LMNOPQRSTU...
123456789101112131415161718192021...
    David decided to use a different code in his answer to Sam. This time, he was putting A instead of B,
B instead of C, and so on. His message to Sam shown on the right was very short. Can you understand?
ABCDEFGHIJKLMNOPQRSTUVWXYZ
BCDEFGHIJKLMNOPQRSTUVWXYZA
    Sam guessed David's code, and he replied: ZESDQ, RBGNNK. When David's little sister saw the message,
she felt puzzled. She couldn't read it at all. But David was very happy that his sister couldn't read his message!
     Lots of people use codes to send secret messages. In a war, secrets are very important so soldiers often
send each other messages in code. Nowadays, we can use computers to make and break difficult codes. Even
before computers, people invented other machines to do this. 
    Here's a famous machine that Germans used in the Second World War (1941-1945). It's called the Enigma
Machine. The machines were very big, heavy and expensive. Every day they changed the codes automatically,
and this made it almost impossible for anyone to break the codes. The person sending a message had one
machine, and the person receiving the message had another.  
1.Sam asked David to go to the ______.
[ ]
A.park
B.house
C.museum
D.zoo
2.Sam told David to meet him ______.
[ ]
A.before breakfast
B.after school
C.after dinner
D.before school
3.Codes are used to keep something ______.
[ ]
A.new
B.old
C.secret
D.known
4.People will never know the meaning if they can't ______ the code.
[ ]
A.break
B.make
C.change
D.write
5.The best title of this passage is           .
[ ]
A.English Letters
B.Codes
C.Messages
D.Machines
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