关于失语症训练时机，下列说法哪项正确？（）
A. 正规的语言训练开始时期可在急性期，患者病情尚不稳定时
B. 对发病2～3年后的患者，没有做训练必要
C. 重度痴呆者仍适合进行语言训练
D. 全身状态不佳者仍应进行语言训练
E. 拒绝或无训练动机及要求者，不适合做语言训练
A network administrator wants to ensure that only the server can connect to port Fa0/1 on a Catalyst switch. The server is plugged into the switch Fa0/1 port and the network administrator is about to bring the server online. What can the administrator do to ensure that only the MAC address of the server is allowed by switch port Fa0/1?（）
A. Configure port Fa0/1 to accept connections only from the static IP address of the server.
B. Employ a proprietary connector type on Fa0/1 that is incompatible with other host connectors.
Configure the MAC address of the server as a static entry associated with port Fa0/1.
D. Bind the IP address of the server to its MAC address on the switch to prevent other hosts from spoofing the server IP address.
E. Configure port security on Fa0/1 to reject traffic with a source MAC address other than that of the server.
F. Configure an access list on the switch to deny server traffic from entering any port other than Fa0/1.
患者，女性，66岁，下唇部肿物3年，诊断为"下唇鳞状细胞癌"，行"肿物扩大切除术"术后缝合下唇创口时：下唇缺损达到超过2/3或全下唇缺损，常采取（）
A. 直接拉拢缝合
B. 鼻唇沟组织瓣转移术
C. Abbe-Estlander法
D. 三合一整复术
E. Bernard手术
F. 扇形颊瓣转移法
光化学烟雾是一种混合物，其主要成分是（）。
A. SO2、NO2、醛类
B. 硫酸盐、O3、醛类
C. O3、醛类、过氧酰基硝酸酯
D. 过氧酰基硝酸盐、硝酸盐、硫酸盐
E. O3、H2硫酸盐
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