某些板块构造学者将岩石圈划分()内部相对稳定的基本构造单元(板块).
A.4个;
B.5个;
C.6个;
D.7个.
参考答案:C
将融合细胞稀释,实际是每个培养孔为()
A.一个细胞
B.没有细胞
C.没有或一至几个细胞
D.几个细胞
E.一至几个细胞
在一台Cisco路由器上封禁ICMP协议,只允许215.192.40.16/28和202.204.28.0/24子网的ICMP数据包通过路由器,下列正确的access-list配置是______。
A.Router(config)#access-fist 100 permit icmp 215.192.40.16 255.255.255.240 anyRouter(config)#access-list 100 permit icmp 202.204.28.0 255.255.255.0 anyRouter(config)#access-list 100 deny icmp any anyRouter(config)#access-list 1 00 permit ip any anyRouter(config)#B.Router(config)#access-list 98 permit icmp 215.192.40.16 0.0.0.15 anyRouter(config)#access-list 98 permit icmp 202.204.28.0 0.0.0.255 anyRouter(config)#access-]ist 98 deny icmp any anyRouter(config)#access-list 98 permit ip any anyRouter(config)#C.Router(config)#access-1ist 198 permit icmp 215.192.40.16 0.0.0.15 anyRouter(config)#access-list 198 permit icmp 202.204.28.0 0.0.0.255 anyRouter(config)#access-list 198 deny icmp any anyRouter(config)#access-list 198 permit ip any anyRouter(config)#D.Router(config)#access-list 198 permit icmp 215.192.40.16 0.0.0.15 anyReuter(config)#access-list 198 permit icmp 202.204.28.0 0.0.0.255 anyRouter(config)#access-list 198 permit ip any anyRouter(config)#access-list 198 deny icmp any anyRouter(config)#