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问题 多项选择题

在气体放电灯的频闪效应对视觉作业有影响的场所，应采用下列哪些？（）

A.采用电感镇流器

B.采用高频电子镇流器

C.相邻灯具分接在不同相序

D.采用单相供电，使场所内灯具接在相同相序上

答案

参考答案：B, C

填空题

票据法上的权利可以分为票据______的相关权利和票据______的相关权利。
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单项选择题 共用题干题

For  (1) service, we need a virtual-circuit subnet. Let us see how that works. The idea behind virtual circuits is to avoid having to choose a new (2) for every packet sent. Instead,when a connection is established, a route from the(3) machine to the destination machine is chosen as part of the connection setup and stored in tables inside the (4) . That route is used for all traffic flowing over the connection, exactly the same way that the telephone system works.When the connection is released, the virtual circuit is also terminated. With connection-oriented service, each packet carries an (5) telling which virtual circuit it belongs to.

空白（4）处应选择（）

A.connections

B.resources.

C.bridges

D.routers
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