为高热患者降温，正确的方法是（）。 A.中暑患者用冷盐水灌肠 B.昏迷患者头部置于冰

脐疝疝环（）

A.腹壁切口

B.外环

C.股环

D.腹股沟三角

E.脐环

下列各句中标点符号使用错误的一项是  （   ）

A．宛南华侨新村位于徐汇区、中山南二路与宛平路交汇处。

B．统计数字表明，广东全省待业人员就业难的问题已经基本得到解决。

C．如果你浪费时间，时间就荒废你的青春；如果你重视时间，时间就珍惜你的生命。

D．这里叫作虬在湾：据说虬早已被吕洞宾度上天了，可是望过去，跳掷翻腾，像又回到了故居。

A transport layer protocol usually has several responsibilities．One is to create a process-to-process communication；UDP uses (1) numbers to accomplish this．Another responsibility is to provide control mechanisms at the transport level．UDP does this task at a very minimal level．There is no flow control mechanism and there is no(2) for received packet．UDP, however, does provide error control to some extent．If UDP detects an error in the received packet，it will silently drop it． The transport layer also provides a connection mechanism for the processes．The (3) must be able to send streams of data to the transport layer．It is the responsibility of the transport layer at (4) station to make the connection with the receiver, chop the stream into transportable units，number them，and send them one by one．It is the responsibility of the transport layer at the receiving end to wait until all the different units belonging to the same process have arrived，check and pass those that are (5) free, and deliver them to the receiving process as a stream．

（5）处应填（）。

A．call

B．state

C．cost

D．error

手的功能位是

A．犹如握笔姿势，越向小指，指尖指向手掌中心
B．相当于握小球体位
C．掌指关节屈曲90°位
D．拇指极度外展、对掌、后伸位
E．手指各关节完全伸直

臂丛神经是由哪些脊神经的纤维组成的

A．L_2～4
B．L_4～5～S_1～2
C．L_1～3
D．C₅～T₁
E．C₆～T₁