广告视觉传达在历史上发展速度最快的媒体形式是()。
盐酸是由下列哪种细胞分泌的() 胃腺的主细胞。 胃腺的粘液细胞。 胃腺的壁细胞。 幽门腺的G细胞。
()是坚持和发展中国特色社会主义的必由之路。 解放思想。 科学发展。 改革开放。
Which two statements are true about IS -IS routing?() Based on the default timers, OSPF d etects a failure faster than IS - IS does.。 OSPF default timers permit more tuning than IS - IS does.。 IS - IS is more efficient than OSPF in the use of CPU resources.。 OSPF is more scalable than IS - IS because of its ability to identify normal, stub, an d NSSA areas.。 IS - IS and OSPF are both Open Standard, link - state routing protocols which support VLSM.。
心理学源于() 宗教。 哲学。 社会学。 生理学。
保持一致性是提升网站的可用性的重要手段,它体现在()