有关针灸治疗蛇串疮，叙述不正确的是( )A．后遗神经痛者可在局部用皮肤针叩刺 B

一个边长1分米正方形，若四个角各剪去一个边长是1厘米的小正方形，那么它的周长（　　）

A．和原来相等

B．减少4厘米

C．增加8厘米

D．增加4厘米

OSPF is a link-state routing protocol. It is designed to be run internal to a single (1) system. Each OSPF router maintains an identical(2) describing the autonomous system's topology. From this database, a routing table is calculated by constructing a shortest-path (3).OSPF recalculates routes quickly in the face of topological changes, utilizing aminimum of routing (4) traffic. OSPF provides support for equal-cost multipath. An area routing capability is provided, enabling.an additional level of routing protection and a reduction in routing protocol (5).

空白（1）处应选择（）

A.autonomous

B.network

C.computer

D.server

识别风险是一项复杂的工作，有代表性的方法有( )种。

A．4

B．5

C．6

D．7

（）属于视觉警告。

A.蜂鸣器或闹钟

B.易燃易爆气体里加入气味剂

C.振动

D.亮度、颜色、信号灯

自动化新设备启动前，建设单位负责在工程启动前（）个工作日开通调度自动化通道。

A.1

B.3

C.5

D.7