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问题 单项选择题

聚落的建筑风格与自然环境密切相关，下列地区与当地居民搭配不相符的是（）

A.西双版纳------竹楼

B.云贵高原------蒙古包

C.陕北延安------窑洞

D.江南地区------尖顶屋

答案

参考答案：B

单项选择题

For each blank, choose the best answer from the four choices and write down on the answer sheet.

(21) is a six bytes OSI layer 2 address which is burned into every networking

device that provides its unique identity for point to point communication.

(22) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.

(23) functions with two layers of protocols. It can connect networks of different speeds and can be adapted to an environment as it expands.

(24) is the popular LAN developed under the direction of the IEEE802.5.

(25) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.

（22）是（）

A.ISO

B.ANSI

C.CCYIT

D.IEEE
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单项选择题

病人，女，55岁，在家用蜂窝煤炉子做饭时感觉头痛，饭后头痛加剧，伴恶心、呕吐，感觉四肢无力且视物不清，而后发生昏倒。入院时病人口唇黏膜呈樱桃红，脉快，多汗，神志不清伴低热。

病人最可能的诊断是( )。

A．食物中毒
B．心源性晕厥
C．休克
D．心脏神经官能症
E．一氧化碳中毒
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