安全状况等级为三级的移动式压力容器每（）年至少进行一次耐压试验。
查看答案
不属于水表使用维护内容的是（）。
A. 检查灵敏度指针是否转动
B. 检查接头渗漏
C. 水表检定
D. 水表室内阀门功能检查
下列燃料中燃烧时火焰最小的是（）。
A. 烟煤
B. 无烟煤
C. 贫煤
D. 褐煤
Half of your network uses RIPv2 and the other half runs OSPF. The networks do not communicate with each other. Which two of these factors describe the impact of activating EIGRP over each separate part？（）
A. EIGRP will not be accepted when configured on the actual RIPv2 routers.
B. OSPF will no longer be used in the routing table， because you only have EIGRP internal routes running.
C. OSPF will no longer be used in the routing table， because you only have EIGRP external routes running.
D. RIPv2 will populate its RIP database but not its routing table， because you only have EIGRP external routes running.
E. RIPv2 will populate its RIP database but not its routing table， because you only have EIGRP internal routes running.
F. OSPF database will have RIPv2 routes.
微信支付 
支付宝支付