相关系数等于-1意味着（） 两种证券之间具有完全正相关性。 两种证券之间相关性稍差。 两种证券之间风险可以完全对消。 两种证券组合的风险很大。
Which two wireless devices acts as a communication connection between the client and WLAN（） bridge。 access point。 wireless adaptor。 Layer 3 switch。 antenna。
由滩顶至尾矿库内滩面水边线的水平距离叫作（）。 滩顶。 滩长。 干滩长度。
Your network consists of a single Active Directory domain.You implement a new subnet. On the new subnet, you install a new DHCP server that runs Windows Server 2003 Service Pack 2 (SP2). You create a scope for the 192.168.10.0/24 network ID.You connect a new client computer named Client1 to the subnet. Client1 runs Windows XP Professional Service Pack 3 (SP3).You discover that Client1 has an IP address of 169.254.10.22 and is configured to receive IP configurations automatically.You need to ensure that Client1 receives an IP configuration from Server1. What should you do?（） Activate the DHCP scope. 。 Create a reservation for Client1. 。 Enable BOOTP forwarding on the router. 。 Configure a DHCP Relay Agent on the subnet.。
技术性收入审计常用的实质性程序不包括（）。 获取高新技术产品（服务）收入明细表。 实质性分析程序。 检查技术性收入的确认方法是否与财务报表所采用的收入确认方法相一致。 询问、观察、检查、穿行测试和重新执行。
On a cisco aironet 802.11 a/b/g wireless lan client adapter， the status led and activity led are alternating on and off.
What does this indicate？（）
