《国家电网公司基建安全管理规定》规定,三交”是指()
A. 交措施
B. 交任务
C. 交安全
D. 交技术
E. 交质量
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可供选择的证券有三种时,组合降低风险的程度由证券间的关联程度决定。( )
A. 正确
B. 错误
患者右下6缺失3个月,要求固定修复。决定其能否固定桥修复的因素,除了()
A. 邻牙牙周支持能力
B. 邻牙牙冠大小、形态
C. 缺牙区黏膜厚度
D. 咬合关系
E. 邻牙的位置
DreamweaverMX的PageProperties窗口中,可以设置标签的属性,其中ActiveLinks表示()。
A. 超链接的颜色
B. 激活的链接颜色
C. 已浏览链接颜色
D. 以上说法错误
The OSPF Hello protocol performs which of the following tasks? (Choose two.)()
A. It provides dynamic neighbor discovery.
B. It detects unreachable neighbors in 90 second intervals.
C. It maintains neighbor relationships.
D. It negotiates correctness parameters between neighboring interfaces.
E. It uses timers to elect the router with the fastest links as the designated router.
F. It broadcasts hello packets throughout the internetwork to discover all routers that are running OSPF