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问题 单项选择题 共用题干题

患者上胞下垂，晨起病轻，午后加重，并伴周身乏力，吞咽困难。

其治法是（）

A.清脾热，除风邪

B.活络通脉

C.升阳益气

D.温肾阳，益化火

E.养肝肾、祛风邪

答案

参考答案：C

单项选择题

When the system upon which a transport entity is running fails and subsequently restarts, the (1) information of all active connections is lost. The affected connections become half-open, as the side that did not fail does not yet realize the problem.

The still active side of a half-open connection can close the connection using a (2) timer. This timer measures the time the transport machine will continue to await an (3) of a transmitted segment after the segment has been retransmitted the maximum number of times. When the timer (4) , the transport entity assumes that either the other transport entity or the intervening network has failed. As a result, the timer closes the connection, and signals an abnormal close to the TS user.

In the event that a transport entity fails and quickly restarts, half-open connections can be terminated more quickly by the use of the RST segment. The failed side returns an RST i to every segment i that it receives. When the RST i reaches the other side, it must be checked for validity based on the (5) number i, as the RST could be in response to an old segment. If the reset is valid, the transport entity performs an abnormal termination.

4（）

A.stops 

B.restarts 

C.expires 

D.abandons
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单项选择题

命令Backupstate-down5表示（）

A、第5种备份down状态

B、主备份接口切换只能进行5次

C、当主接口down状态持续5秒后，切换到备份接口

D、当主接口逻辑通道时，如果呼叫5次未成功，则认为主逻辑通道处于down状态
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