槽型上托辊一般由3个托辊组合而成，槽角一般为（）。 ["15°","30°","40°","60°"]
关于计算机网络体系结构的定义，以下正确的是（）。 ["它是一种计算机网络的具体实现","它是建立和使用通信硬件和软件的一套规则和规范","它是执行计算机数据处理的软件模块","它是由ISO制定的一个标准"]
某省加快发展的核心战略是（）。 ["推进新型工业化","推进城镇化","推进农业现代化","推进科技产业化"]
选择酶反应器的主要依据有哪些？
Your network consists of a single Active Directory domain. The functional level of the domain is Windows Server 2008 R2. The domain contains 200 Windows Server 2008 R2 servers. You need to plan a monitoring solution that meets the following requirements. èSends a notification by e-mail to the administrator if an application error occurs on any of the servers èUses the minimum amount of administrative effort What should you include in your plan？（） ["On one server， create event subscriptions for each server. On the server， attach tasks to the application error events.","On one server， create an Event Trace Sessions Data Collector Set. On all servers， create a System Performance Data Collector Set.","On all servers， create event subscriptions for one server. On all servers， attach a task for the application error events.","On all servers， create a System Performance Data Collector Set. On one server， configure the report settings for the new Data Collector set."]
简述消防栓的使用方法。
