我国某中外合资经营企业，投资总额为400万美元，则注册资本最低为（）万美元。 ["200","210","250","400"]
Your network contains a single Active Directory domain named contoso.com. The functional level of the domain is Windows 2000 mixed.You have a domain controller named DC1 that runs Windows Server 2003 Service Pack 2 (SP2). DC1 hosts a standard primary zone for contoso.com.You need to ensure that only computers in the contoso.com domain can register host records in the contoso.com zone. What should you do? （） ["Convert contoso.com to a secondary zone. ","Convert contoso.com to an Active Directory-integrated zone. Set dynamic updates for the zone to Secure only. ","Convert contoso.com to an Active Directory-integrated zone. Set dynamic updates for the zone to Nonsecure and secure. ","Change the domain functional level to Windows Server 2003. Set dynamic updates for the zone to Nonsecure and secure.&e"]
关于溜井卸矿口，下列说法正确的是（）。 ["应设安全护栏","应设明显标志、良好照明","A+B","不应设挡墙"]
俄国十月革命与二月革命相比较，最主要的不同之处是（）。 ["革命前面临深刻的危机","建立了工兵苏维埃政权","目的是推翻资产阶级统治","以暴力革命为主"]
Which wireless LAN statistics are reported from the Cisco Unified Wireless IP Phone 7921G via a directly connected web browser?（） ["duplicate sender packets","unicast packet retry rate","unicast packet retry ratio","association rejectio"]
气体间隙设置屏障后，可以显著提高不均匀电场的击穿电压，这是由于屏障积累了空间电荷，改善了（），妨碍了（）发展的缘故。
