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问题 单项选择题

张某，女，36岁，心烦不寐，入睡时寐时醒，胸闷脘痞，头重目眩，口苦，嗳气，泛恶，舌红，舌苔黄腻，脉滑数。代表方是：

A.龙胆泻肝汤 

B.朱砂安神丸 

C.黄连温胆汤 

D.黄连阿胶汤

答案

参考答案：C

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（2）处应选择（）

A.processor

B.device

C.route

D.terminal
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单项选择题

运行中的保护装置应处于准备动作状态，但该动作时应正确动作，不该动作时不能误动；这是对保护装置（）的基本要求

A.可靠性

B.选择性

C.灵敏性

D.速动性
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