The ping loopback hangs with no output.Which of the following is the most likely cause?（） The loopback interface is down and resolv.conf is configured.。 The loopback is not in /etc/hosts and resolv.conf is configured.。 The loopback interface is down and resolv.conf is not configured.。 The loopback is not in /etc/hosts and resolv.conf is not configured.。
施工成本控制就是要在保证工期和（）满足要求的前提下，采取相应管理措施。 安全。 质量。 成本。 支出。
Given: Which three are true?（） Cat is-a Animal。 Cat is-a Jumper。 Dog is-a Animal。 Dog is-a Jumper。 Cat has-a Animal。 Beagle has-a Tail。 Beagle has-a Jumper。
在安装开孔设备时，若刀具结合器与主轴间存在间隙，一般会影响（） 筒刀开孔的对中度。 液压站正常运行。 装配效果。 筒刀的下降速度。
After updating serverB's network configurations, anadministrator notices that serverA, which resides in a different subnet, is unable to communicate with serverB via ssh or telnet. As ping's to the server fail, the administrator logs onto serverB via a console and finds an available interface en0 in the 'up' state. From the console connection, en0 can communicate with other servers in the same subnet. What is the most likely cause of the problem?（） en0 has no associated ip address.。 serverB is missing its default route.。 serverB and serverA cannot connect due to a firewall.。 en0 has been set up to block traffic from servers that are in different subnets.。
强夯法处理大块石高填方地基技术主要内容包括：（）、挖填交界处的处理、大块石高填方的填筑地基处理等。
