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问题 选择题

19世纪30年代起，一个当时最善于“利用新经济机会”的新的社会阶层逐步进入英国 * * 中心，这个新的阶层是  [ ]

A、工业资产阶级  

B、金融资产阶级  

C、新贵族  

D、垄断资本家

答案

答案：A

填空题

皮肤受热后所出现的一系列局部和全身变化的严重程度，取决于________，和________。
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单项选择题

TCP functions at the Open System Interconnection (OSI) (61) layer, or Layer 4. Its chief responsibility is to ensure (62) end-to-end connectivity. IP, located one layer down, at the OSI network layer, or Layer 3, communicates the addresses of each (63) sender and receiver to the routers along the way. Routers and Layer 3 switches can read IP and other Layer 3 (64) . This information, combined with routing tables and other network intelligence, is all it takes to get (65) the room or around the world via TCP/IP.

A．packet

B．packets

C．packet’s

D．packets’
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