Eudemon防火墙划分多个区域，为防火墙上多个区域提供双机备份功能时，需要在每一台防火墙上配置多个VRRP备份组。
参考答案：对
The two countries with each other because of the incident on the border. [ ]
A. came into conflict
B. came into a conflict
C. came to conflicts
D. came into conflicts
球墨铸铁的线收缩率取（）。
A.1.3%---1.7%
B.0.6%---0.8%
C.1.6%---2%
D.0.2---0.5%
