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问题 填空题

[问题2]
接入层交换机Switch1的端口24为trunk口，其余各端口属于vlan11，请将(5)～(12)空缺处的内容填写完整，以完成交换机的相关配置(注：填写答案时，配置语句的关键字要求拼写完整)。

答案

参考答案：mode access

单项选择题

For each blank, choose the best answer from the four choices and write down on the answer sheet.
(11) is a protocol that a host uses to inform a router when it joins Or leaves an Internet multicast group.
(12) is an error detection code that most data communication networks use.
(13) is an interior gateway protocol that uses a distance vector algorithm to propagate routing information.
(14) is a transfer mode in which all types of information are organized into fixed form cells on an asynchronous or non-periodic basis over a range of media.
(15) is an identifier of a web page.

A．4B/SB

B．CRC

C．Manchester Code

D．Huffman Code
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单项选择题

下列关于α-酮酸的叙述不正确的是（）

A.使用旷酮酸可以减轻患者的蛋白质营养不良状况

B.α-酮酸在体内可与氨结合合成相应的必需氨基酸

C.α-酮酸的应用可减少血中尿素氮的水平

D.α-酮酸的应用可减少血中肌酐的水平

E.α-旷酮酸本身不含氮
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