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(5)处应选择() Since the Hawaiian Islands have never
been connected to other landmasses, the great variety of plants in Hawaii must
be a result of the long-distance dispersal of seeds, a process that requires
both a method of transport and an equivalence between the ecology of the source
area and that of the recipient area. There is some dispute about the method of transport involved. Some biologists argue that ocean and air currents are responsible for the transport of plant seeds to Hawaii. Yet the results of flotation experiments and the low temperatures of air currents cast doubt on these hypotheses. More probable is bird transport, either externally, by accidental attachment of the seeds to feathers, or internally, by the swallowing of fruit and subsequent excretion of the seeds. While it is likely that fewer varieties of plant seeds have reached Hawaii externally A. support the claim that the distribution of plants in Hawaii is the result of the long distance dispersal of seeds B. lend credibility to the thesis that air currents provide a method of transport for plant seeds to Hawaii C. suggest that the long-distance dispersal of seeds is a process that requires long periods of time D. challenge the claim that ocean currents are responsible for the transport of plant seeds to Hawaii [多选题]对查获的窃电者,供电企业应采取以下措施处理( )。
A.应予制止,并可当场中止供电 B.窃电者应按所窃电量补交电费,并承担补交电费三倍的违约使用电费 C.情节严重的,提请司法机关依法追究刑事责任 D.窃电数额较大的,报请电力管理部门依法处理 [简答题]简述高压隔离开关的主要功用?
[多项选择]与支气管哮喘发作机制有关的是()。
A. 变态反应 B. 呼吸道感染 C. 高气道反应 D. 多种细胞因子 E. 痰液黏稠 [单选题]客户年度累计提钞限额为等值______,超过等值限额的,需提供如境外旅游、留学、就医、商务出行等能够证明现钞使用用途的相关证明材料。
A.5000美元 B.1万美元 C.2万美元 D.5万美元 [单项选择]视网膜是眼睛的感光部分,内有两种感光细胞----杆状细胞和().
A. 柱状细胞 B. 球状细胞 C. 环状细胞 D. 锥状细胞 [判断题].美容师在操作前,一定要检查仪器设备,安全操作。
A.正确 B.错误 [判断题]把电容器串联在线路上以补偿电路电抗,可以改善电压质量,提高系统稳定性和增加电力输出能力。 ( )
A.正确 B.错误 [多选题]下列属于并联电容器的试验项目有( )。(GB 50150—2016《电气装置安装工程 电气设备交接试验标准》18.0.1)
A.测量绝缘电阻 B.电容量测量 C.并联电容器交流耐压试验 D.冲击合闸试验 [单项选择]Usually the deaf people use______language in their daily communications.
A. gesture B. signal C. sign D. mark [单选题]职业道德是指从事一定职业的人们,在( )的工作和劳动中以其内心信念和特殊社会手段来维系 的,以善恶进行评价的心理意识、行为原则和行为规范的总和。
A.特定行业 B.所有行业 C.服务性行业 D.教育 [单选题]以下( )广告形式,不属于灯箱广告。
A.背光灯箱 B.外投光灯箱 C.车厢外广告 [单项选择]常用助行器的稳定性由小到大排序正确的是()
A. 差动框式助行器-四轮助行器-两轮助行器-折叠框式助行器-固定框式助行器 B. 固定框式助行器-四轮助行器-两轮助行器-折叠框式助行器-差动框式助行器 C. 差动框式助行器-两轮助行器-四轮助行器-折叠框式助行器-固定框式助行器 D. 差动框式助行器-四轮助行器-两轮助行器-固定框式助行器-折叠框式助行器 E. 差动框式助行器-四轮助行器-折叠框式助行器-两轮助行器-固定框式助行器 [判断题]有缺陷的带电作业工具应及时修复,不合格的应及时报废,禁止继续使用。
A.正确 B.错误 我来回答: 提交
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