[单选] 下列哪种图层混合模式为图层组所特有（）

辛弃疾《水龙吟登健康赏心亭》以“遥岑远目，（），（）”描绘登高所见江天远景，借景抒怀。 一次水位计的连通管上的汽门泄露，则水位指示值（） 升高。 降低。 不变。 You are a network administrator for your company. The network consists of a single Active Directory domain. All servers run Windows Server 2003. The company’s main office is in Barcelona， and it has branch offices in Paris and London. The company has no immediate plans to expand or relocate the offices.   The company wants to connect the office networks by using a frame relay WAN connection and Routing and Remote Access servers that are configured with frame relay WAN adapters. Computers in each office will be configured to use the local Routing and Remote Access server as a default gateway. You are planning the routing configuration for the Routing and Remote Access servers.   You need to allow computers in Barcelona， Paris， and London to connect to computers in any office. You want to minimize routing traffic on the WAN connection.   What should you do？  （）  At each office， add the OSPF routing protocol to Routing and Remote Access， add the WAN adapter to the OSPF routing protocol， and deploy OSPF as a single-area internetwork.。  At each office， add the RIP version 2 routing protocol to Routing and Remote Access， and configure the WAN adapter to use RIP version 2. Configure the outgoing packet protocol as RIP version 2 broadcast and the incoming packet protocol as RIP version 1 and 2.。  At each office， add the RIP version 2 routing protocol to Routing and Remote Access， and configure the WAN adapter to use RIP version 2. Configure the outgoing packet protocol as RIP version 2 multicast and the incoming packet protocol as RIP version 2 only.。  At each office， configure the Routing and Remote Access server with static routes to the local networks at the other two offices.。 Your network consists of a single Active Directory domain. All servers run Windows Server 2003 Service Pack 2 (SP2). You have a server named Server1. Server1 is configured as an enterprise root certification authority (CA). You perform a complete backup of Server1 that includes the system state. Server1 fails. You install a new server named Server1. You need to recover the enterprise root CA. What should you do? （） Restore the system state backup.。 Restore the %systemroot%\system32\certsrv folder.。 From the Certificates snap-in, import the enterprise root CA certificate.。 From the Certificates snap-in, import the enterprise root CA certificate revocation list (CRL).。 当两钢筋直径不同时，其直径之差不得大于（）mm，钢筋气压焊设备主要有氧一乙炔供气设备、加热器、加压器及钢筋卡具等。 4。 5。 7。 8。 下列哪种图层混合模式为图层组所特有（）