患者，男性，47岁，诊断为胆石症，行胆囊切除，胆总管切开取石，“T”管引流术。
“T”管引流护理的操作要点不正确的是：（） 引流管用胶布蝶形交叉固定，标识清楚。 引流袋位置必须低于切口平面。 保持引流通畅。 准确记录24H引流量。 定时更换引流袋。
A cisco aironet 1020 controller-based access point has been connected to a catalyst 3550-24 pwr switch. however， when it is powered up， the access point fails. What has caused this problem？（） access point does not support 802.11h。 incorrect switch power supply。 switch port is not enabled。 switch does not support 802.3af。 access point has not been initialized with the primary controller。
From small businesses to large-scale enterprises， which two best describe how the Cisco UnifiedWireless Network reduces overall operational expenses？（） extends networkQoS throughout the network。 simplifies management of central or remotely locates access points。 ensures implementation of the most recent security protocols。 streamlines wireless LAN management。 extends features for optical traffic network service。
下列措施费中，属于文明施工费的是（）。 A.现场施工机械设备降低噪声、防扰民措施费用 。 B.施工现场操作场地的硬化费用 。 C.施工现场采用彩色、定型钢板，砖、混凝土砌块等围挡的安砌、维修、拆除费用 。 D.现场污染源的控制、生活垃圾清理外运、场地排水排污措施费用。
You have a DNS server that runs Windows Server 2003 Service Pack 2 (SP2).The server contains two zones named nwtraders.com and contoso.com. Nwtraders.com is configured as an Active Directory-integrated zone. Contoso.com is configured as a standard primary zone. You discover that stale resource records are not being removed from contoso.com. Stale resource records are being removed from nwtraders.com.You need to ensure that stale resource records are automatically removed from contoso.com. What should you do?（） Enable aging and scavenging on the contoso.com zone. 。 Convert contoso.com to an Active Directory-integrated zone. 。 From the start of authority (SOA) record for contoso.com, change the refresh interval. 。 From the start of authority (SOA) record for contoso.com, change the TTL For This Record value.。
以下（）不属于非系统性风险？
