创新型人才必须具备良好的献身精神和进取意识、强烈的事业心和历史责任感等可贵的创新精神。
When designing a converged network, which measures can be taken at the building access layer to help eliminate latency and ensure end-to-end quality of service can be maintained? （） [" rate limit voice traffic"," configure spanning-tree for fast link convergence"," isolate voice traffic on separate VLANs"," classify and mark traffic close to the source"]
吸湿系数
发展
混凝土在初凝之前便立即受冻，在混凝土解冻后转入正常养护，其最终强度（）。 ["A.为零 ","B.损失很大 ","C.可达到未受冻的混凝土基本相同的强度 ","D.可完全达到未受冻的混凝土强度"]
嫡长子继承制
