对于镗刀材料性能的主要要求是（）。 A.硬度高 D.耐磨性好 C.耐热性好 D.足够

公安机关必须接受党委领导的同时，还需要依照党政分开的原则，强调政府对公安机关的领导。 ( )

某女甲长期从事卖淫活动，在得知自己患有梅毒后，为报复已与其离婚的丈夫乙某，主动与乙发生性关系，致使乙某染上梅毒，多方医治无效。该女甲的行为构成：( )

A．传播性病罪

B．故意伤害罪

C．传播性病罪和故意伤害罪

D．报复陷害罪

安全管理可分为几个级别，若任何一个用户进入系统时都必须进行注册，通常将这一级安全管理称之为 (192) 安全管理。
在进程状态转换过程中，可能会引起进程阻塞的原因是 (193) 。
造成计算机系统出现死锁的原因是 (194) 。
CPU不查询设备状态，当设备准备好肘，主动向CPU提出传输请求，CPU响应的信息交换方式是 (195) 方式。

A．文件级
B．系统级
C．用户级
D．目录级

Border Gateway Protocol (BGP) is inter-autonomous system (71) protocol. BGP is based on a routing method called path vector routing. Distance vector routing is not a good candidate for inter-autonomous system routing because there are occasions on which the route with the smallest (72) count is not the preferred route. For example, we may not want a packet through an autonomous system that is not secure even though it is the shortest route. Also, distance vector routing is unstable due to the fact that the routers announce only the number of hop counts to the destination without actually defining the path that leads to that (73) . A router that receives a distance vector advertisement packet may be fooled if the shortest path is actually calculated through the receiving router itself. Link (74) routing is also not a good candidate for inter-autonomous system routing because an internet is usually too big for this routing methoD. To use link state routing for the whole internet would require each router to have a huge link state database. It would also take a long time for each router to calculate its routing (75) using the Dijkstra algorism.

（74）是（）

A.status

B.search

C.state

D.research

下列哪种是可逆的加密算法( )

A．S/Key

B．IDEA

C．MD5

D．SHA