A. access-list standard 172.16.4.13 B. access-list 2 deny 172.16.4.13 0.0.0.0 C. access-list 101 deny 172.16.4.13 0.0.0.0 D. access-list 199 deny 172.16.4.13 255.255.255.255
A. 竞争性招标采购 B. 竞争性谈判采购 C. 单一来源采购 D. 询价采购
A. 正确 B. 错误