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问题 名词解释

五铺作

答案

参考答案：

作重拱单杪（音邈miao）单下昂，里转五铺重拱出双杪并计心。（注：重拱――指瓜子拱，慢拱重叠布置。一杪――出一个华拱＜垂直于立面的拱叫华拱＞。

单项选择题

术后急性疼痛引起机体释放的内源性物质不包括（）。

A.来自交感神经末梢和肾上腺髓质的儿茶酚胺

B.来自肾上腺皮质的醛固酮和皮质醇

C.下丘脑释放的抗利尿激素

D.肾素血管紧张素系统激活

E.催乳素分泌减少
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单项选择题

When the system upon which a transport entity is running fails and subsequently restarts, the (136) 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 connections can close the connection using a (137) timer. This timer measures the time the transport machine will continue to await an (138) of a transmitted segment after the segment has been retransmitted the maximum number of times. When the timer (139) , 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 (140) 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.

A．sequence

B．acknowledgment

C．connection

D．message
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