在Cisco路由器上建立一个名为zw246的DHCP地址池，地址池的IP地址是176.115.246.0/24，其中不用于动态分配的地址有176.115.246.2～176.115.246.10，缺省网关为176.115.246.1，域名为tj.edu.cn，域名服务器地址为176.115.129.26，地址租用时间设定为6小时30分钟。下列DHCP地址池的配置，正确的是______。

A) Router(config)#ip dhcp pool zw246
Router(dhcp-config)#ip dhcp excluded-address
176.115.246.2 176.115.246.10
Router(dhcp-config)#network 176.115.246.0
255.255.255.0
Router(dhcp-config)#defauh-router 176.115.246.1
Router(dhcp-config)#domain-name tj.edu.cn
Router(dhcp-config)#dns server address 176.115.129.26
Router(dhcp-config)#lease 0 6 30
B) Router(config)#ip dhcp excluded-address 176.115.246.2-10
Router(config)#ip dhcp pool zw246
Router(dhcp-config)#network 176.115.246.0
255.255.255.0
Router(dhcp-config)#default-router 176.115.246.1
Router(dhcp-config)#domain-name tj.edu.cn
Router(dhcp-config)#dns-server address 176.115.129.26
Router(dhcp-config)#lease 0 6 30
C) Router(config)#ip dhcp excluded-address 176.115.246.2 176.115.246.10
Router(config)#ip dhcp pool zw246
Router(dhcp-eonfig)#network 176.115.246.0
255.255.255.0
Router(dhcp-config)#default-router 176.115.246.1
Router(dhcp-config)#domain-name tj.edu.cn
Router(dhcp-config)#dns-server address 176.115.129.26
Router(dhcp-config)#lease 0 6 30
D) Router(config)#ip dhcp excluded-address 176.115.246.2 176.115.246.10
Router(config)#ip dhcp pool zw246
Router(dhcp-conlig)#network 176.115.246.0
255.255.255.0
Router(dhcp-config)#default-router 176.115.246.1
Router(dhcp-config)#domain-name tj.edu.cn
Router(dhcp-config)#dns-server address 176.115.129.26
Router(dhcp-config)#lease 30 6 0

女，28岁，高热二周，体温在39～40℃，并有头痛、咳嗽、痰少，肺部体检无异常发现，心率120次/分，肝肋下一横指，脾肋下一横指，质软，WBC7.8×10⁹/L，中性57%，淋巴43%，血沉92mm/h，痰找结核杆菌阴性，血培养阴性，肥达反应阴性，X线胸片见两肺广泛分布的大小相等粟粒状阴影。本例的诊断应考虑（）

A.败血症

B.伤寒

C.肺泡细胞癌

D.急性血行播散性肺结核

E.急性血吸虫病