按照目的不同，索赔可分为（）。 A.合同内索赔 。 B.道义索赔 。 C.工期索赔 。 D.费用索赔 。 E.单项索赔。
为了稳定烧结矿的品位和碱度，最有效的措施是（）。 稳定灰石配比。 稳定精矿的综合品位。 稳定燃料配比。
Which statements describe two of the benefits of VLAN Trunking Protocol?（） VTP allows routing between VLANs.。 VTP allows a single switch port to carry information to more than one VLAN.。 VTP allows physically redundant links while preventing switching loops.。 VTP simplifies switch administration by allowing switches to automatically share VLAN configuration information.。 VTP helps to limit configuration errors by keeping VLAN naming consistent across the VTP domain.。 VTP enhances security by preventing unauthorized hosts from connecting to the VTP domain.。
You are working in a data center environment and are assigned the address range 10.188.31.0/23.You areasked to develop an IP addressing plan to allow the maximum number of subnets with as many as 30 hostseach.Which IP address range meets these requirements？（） 10.188.31.0/27。 10.188.31.0/26。 10.188.31.0/29。 10.188.31.0/28。 10.188.31.0/25。
一个国家、一个省或者一个地区，它形成在一定的国土面积之内，应有（）几个基本的空间。
道路绿化设计的总原则错误的是（）
