畜产品和饲料的促销活动主要有()、()、公共关系和营业推广四种形式。
参考答案:人员推销广告
用扩展访问控制列表配置封禁ICMP协议,只允许168.27.95.0/24子网的ICMP数据包通过路由器,正确的配置是______。
A.access-list 90 deny icmp 168.27.95.0 255.255.255.0 any access-list 90 deny icmp any any access-list 90 permit ip any anyB.access-list 100 permit icmp 168.27.95.0 0.0.0.255 any access-list 100 permit ip any anyC.access-list 110 permit icmp 168.27.95.0 255.255.255.0 any access-list 110 deny icmp any anyD.access-list 120 permit icmp 168.27.95.0 0.0.0.255 any access-list 120 deny icmp any any access-list 120 permit ip any any
计划展望期应该()产品总提前期。
A、小于
B、小于或等于
C、等于
D、大于或等于