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问题 单项选择题

在拓扑结构上，快速以太网采用

A．总线型拓扑结构

B．环型拓扑结构

C．星型拓扑结构

D．树型拓扑结构

答案

参考答案：C

解析：【解析】在拓扑结构上，快速以太网采用星型拓扑结构。

单项选择题

酒精适用于（）刮削的显示剂

A、精

B、粗

C、细

D、极精密
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问答题

We are now in an inter-disciplinary integration era, the pervasion and cooperation among disciplines has become a general trend for the development of science. We wouldn’t have today’s advanced computer graphics systems if mathematician hadn’t been able to solve problems related to surface geometric. We wouldn’t have networks capable of handling massive amounts of data if physicists and astronomers hadn’t continuously forged tools to look more deeply into subatomic structures and the cosmos. Chemists’ efforts to simulate complex phenomtna and predict the properties of many-electron systems have inspired massively parallel architectures for computing. And the information made available by the sequencing of the human genome has caused us to rethink how to store, manipulate, and retrieve data most effectively. It will take new insights from studies of human cognition, linguistics, neurobiology, computing, and more to develop systems that truly augment our capacity to learn and create.
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