WWW代表（ ） A．广域网 B．局域网 C．城域网 D．万维网

中毒休克综合症（）

A.由内毒素引起

B.高热

C.休克

D.泛发性皮疹、恢复期可出现皮肤脱屑

E.多脏器功能损害

舌各部有哪些神经分布，各神经有何功能？

In low - speed network ,it is usually adequate to wait for congestion to occur and then react to it by telling the source of packets to slow down. In high - speed networks, this approach often works poorly, because in the (71) between sending the notification and notification arriving at the source, thousands of additional (72) may arrive. In ATM network , a major tool for preventing (73) is (74) control. When a host wants a new virtual (75) ,it must describe the traffic to be offered and the service expected.

A．path

B．rout

C．circuit

D．way

用示踪气体浓度衰减怯测定室内新风量时，其采样与测定工作是在关闭门窗的情况下进行的。

充满管道的流体，当它流经管道内的节流件时，在节流件前后便产生了压差，流体流量愈大，产生的压差愈小。