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问题 问答题

拿生、熟鸡蛋各一个，不要将其打破，你能否判断哪一个是生鸡蛋，哪一个是熟鸡蛋．将你的方法写下来，并简要说明理由．

答案

答：同时旋转两个鸡蛋，先停下来的是生鸡蛋．理由：因为生鸡蛋的蛋黄和蛋清是液态的，旋转时由于惯性蛋黄和蛋清继续保持静止，液和壳之间产生摩擦，使蛋很快停下，而熟蛋内外是一个固体，故旋转的快．

单项选择题

以下不属于交流仪器的为（）．

A、交流电桥

B、标准电感

C、标准电容

D、标准电阻
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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.

（64）是（）

A.better

B.protocols

C.protocol

D.good
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