放顶煤技术主要是在厚煤层的某一底部位置布置采煤工作面,并利用()及其它措施将顶煤一起放落的采煤方法。
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“有一个星期天,三位同学去郊游。李明拿了5样菜,张强拿了3样菜,王刚按价该拿8元钱。如果每样菜的价钱都相等,这8元钱应该怎样分给李明和张强?”这道应用题设计存在的问题是()。
A. 应用题素材脱离实际
B. 题型的套路化很明显
C. 应用题的表述不规范
D. 应用题素材的单一化
Your network is configured as shown in the following diagram. Each office contains a server that has the File Services server role installed. The servers have a shared folder named Resources. You need to plan the data availability of the Resources folder. Your plan must meet the following requirements: èIf a WAN link fails,the files in the Resources folder must be available in all of the offices. èIf a single server fails, the files in the Resources folder must be available in each of the branch offices,and the users must be able to use existing drive mappings. èYour plan must minimize network traffic over the WAN links. What should you include in your plan?()
A. a stand-alone DFS namespace that uses DFS Replication in a full mesh topology
B. a domain-based DFS namespace that uses DFS Replication in a full mesh topology
C. a stand-alone DFS namespace that uses DFS Replication in a hub and spoke topology
D. a domain-based DFS namespace that uses DFS Replication in a hub and spoke topology