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问题 选择题

美国公使承认：“我们的国旗曾经用来庇护在中国的所有流氓。”外国政府能在近代历史上“庇护”在华的外国“流氓”所依据的是[ ]

A．片面最惠国待遇  　

B．领事裁判权

C．协定关税权  　 

D．永久居住权

答案

答案：B

单项选择题

下列群体不能享受半价优惠的是（）

A、军人

B、教师

C、残疾人

D、学生
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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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