遵循团结互助的职业道德规范，必须做到（） A.尊卑有别 B.尊重他人 C.谨慎行事

患者易患此病的原因是()

A． * * 壁萎缩，黏膜变薄

B．卵巢功能衰退，雌激素水平降低

C．局部抵抗力降低

D．上皮细胞内糖原含量减少， * * 内pH值上升

E．以上均对34岁女性，葡萄胎2次清宫后， * * 不规则流血持续存在，尿HCG(+)。

食品强化的要求是（）。

A.明确对象和目的

B.接受强化食品的人数多

C.保证食品卫生

D.强化食品营养价值高

E.营养全面

体系结构设计度量侧重于程序体系结构的特征。以下与其复杂性测量无关的是______。

A．结构复杂度
B．数据复杂度
C．功能复杂度
D．系统复杂度

下列关于化学反应2X+Y=2Z的叙述，正确的是（）。

A.Z一定是化合物

B.在反应中X、Y、Z三种物质的粒子数目比为2：1：2

C.若X和Y的相对分子质量分别为M和N，则Z的相对分子质量为（M+N）

D.若agX完全反应生成bgZ，则同时消耗（b—a）gY

One of the most widely used routing protocols in IP networks is the Routing Information Protocol (RIP). RIP is the canonical example of a routing protocol built on the (71) algorithm. Routingprotocols in internetworks differ slightly from the idealized graph model. In an internetwork, the goal ofthe routers to forward (72) to various networks.
Routers running RIP send their advertisement abOLit cost every (73) seconds. A router also sends an up date message whenever an update from another router causes it to change its routing table.
Routing protocols use different techniques for assigning (74) to individual networks. Further, each routing protocol forms a metric aggregation in a different way. RIP takes the simplestapproach, with all link costs being equal (75) . Thus it always tries to find the minimum hop route. Valid distances are 1 through 15. This also limits RIP to running on fairly small networks.

A．Dijkstra
B．path-vector
C．link-state
D．distance-vector