"双20标准"是指中国人民银行规定国家助学贷款违约率达到（），且违约学生达到20人的高校．经办银行可以停止对其发放助学贷款。 ["20%","15%","35%","40%"]
卖出回购证券业务
Your network consists of a single Active Directory domain. All servers run Windows Server 2003 Service Pack 2 (SP2). You have a member server named Server1 that is configured as a DHCP server. You install a new stand-alone server named Server2 in the same subnet as Server1. You install the DHCP service on Server2. You need to ensure that Server2 can assign IP configurations to clients on the subnet. What should you do first?（） ["Join Server2 to the domain.","Restart the DCHP Server service on Server1.","From the DHCP snap-in on Server1， add Server2 by using the Add Server option.","From the DHCP snap-in on Server2， add Server 1 by using the Add Server option."]
请计算750风机的同步转速
这些年，一些地方和部门（）盛行，有的是搞家长制、独断专行，以至于一些人不知党内政治生活为何物，是非判断十分模糊。 ["自由主义","分散主义","好人主义","个人主义"]
法律法规对网络运行管理具有怎样的重要性？
