患者女，50岁，不小心造成手指外伤1周，当时未处理。后逐渐伤口处溢脓，发热，并感张口

患者，男，65岁，进行性吞咽困难4个月，体重下降6kg，目前能饮水和进流质饮食。

该病例目前最可能的诊断为

A．贲门失弛缓症

B．食管癌

C．食管狭窄

D．食管憩室

25. Oh, the fire is getting nearer and nearer. It is _____ our children and old people.

A．dangerous on

B．dangerous to

C．dangerous for

D．dangerous with

Flow control is a function that prevents network congestion by ensuring that (59) do not overwhelm (60) with data.

There are three commonly used methods for handling network congestion. (61) is used by network devices to temporarily store bursts of excess data in memory until they can be processed (62) are used by receiving devices to help prevent their buffers from overflowing. (63) is a flow-control scheme in which the source device requires an acknowledgment from the destination aider a certain number of packets have been transmitted.

59（）

A．transmitting devices

B．transmitted devices

C．receiving devices

D．received devices

薄束的纤维来自于（）

A.薄束核

B.楔束核

C.脊髓后角固有核

D.三叉神经节

E.脊神经节

根据维纳的两维成败归因理论，属于稳定的内在原因的是（）。

A.能力

B.努力

C.任务

D.运气