For a router connected to two ISPs for redundancy， using IPSLA and static routing， how would youconfigure uRPF on the uplink interface？（） ["ip verify unicast source reachable-via any","ip verify unicast reverse-path","ip verify unicast reverse-path loose","ip verify unicast reverse-path strict"]
变速器由变速（）和变速操纵机构组成。 ["动力机构","机械机构","传动机构","液力机构"]
While deploying a new switch， you accidently connect ports 3/12 and 3/18 together， creating a loop. STP detected it and placed port 3/18 in blocking mode. Why did STP not place port 3/12 in blocking mode instead？（） ["Port 3\/12 was already up and forwarding before the loop was created.","Port priority is based on lowest priority and lowest port number.","You connected the wire on port 3\/18 last.","None of the above， it is purely random."]
为进一步强化重污染天气应对，从现在起到3月31日，（）地级及以上城市试行统一重污染天气预警分级标准。 ["福厦泉","广深珠","京津冀","宁沪杭"]
《动车组列车服务质量规范》餐车整洁美观，展示柜布置艺术，与就餐环境相协调；厨房保持清洁，各种用具定位摆放。商品、售货车等不堵通道，不占用旅客使用空间。售货车内外清洁，定位放置，有制动装置和防撞胶条。
转动惯量
