CorelDRaWl2中设置工作页面的属性时，应当选择命令正确的是（） ["“【文件】>【打印设置】”命令","“【文件】>【文档设置】”命令","“【版面】>【打印设置】”命令","“【版面】>【页面设置】”命令"]
接地线的连接应采用焊接，焊接必须牢固无虚焊。若不宜焊接，可用（），但应进行除锈处理。 ["螺栓压接","卡套压接","压钳压接","卡压连接"]
What kind of information does a router running a link-state routing protocol need to create and maintain its topological database?（） [" LSAs from other routers"," Beacons received on point-to-point links"," hello packets"," Routing tables received from neighbors"," SAP packets sent by other routers"," TTL packets from exclusive router"]
Routers R1 and R2 use HSRP so that one router will back up the other should there be a failure. Which two statements are true about the Hot Standby Router Protocol （HSRP）？ （） [" Load sharing with HSRP is achieved by creating multiple subinterfaces on the HSRP routers. "," Routers configured for HSRP can belong to multiple groups and multiple VLANs."," Load sharing with HSRP is achieved by creating HSRP groups on the HSRP routers."," All routers configured for HSRP load balancing must be configured with the same priority. "," Routers configured for HSRP must belong to only one group per HSRP interface."]
为防止液压回路的压力超过设定压力，需要在液压回路中装设（）。 ["单向阀","方向阀","节流阀","溢流阀"]
票决循环
