20世纪五六十年代在欧美盛行的戏剧流派是（）。 现代派。 印象派。 荒诞派。 古黄派。
单词句
液压系统除特殊规定外，在使用地环境温度最高时，液压泵的进口温度不得超过（）℃。 20；。 30；。 50；。 60。。
A network administrator is troubleshooting the OSPF configuration of routers R1 and R2. The routers cannot establish an adjacency relationship on their common Ethernet link. The graphic shows the output of the show ip ospf interface e0 command for routers R1 and R2. Based on the information in the graphic, what is the cause of this problem?（） The OSPF area is not configured properly.。 The priority on R1 should be set higher.。 The cost on R1 should be set higher.。 The hello and dead timers are not configured properly.。 A backup designated router needs to be added to the network.。 The OSPF process ID numbers must match.。
试述工业企业供电系统的构成。
Which two statements about DS-Lite are true？（）
