某公司已发行普通股200000股，拟发放20000股股票股利，若该股票当时市价为22元，则发放股票股利后的每股市价为20元。
下列HBV感染标志物均可表示HBV复制，但应除外（） ["HBV-DNA","HBeAg","HBsAg","HBcAg","HBV-DNA"]
论述保险中介人之间的差别。
干粉输送管道的安装要求正确的是（）。 ["防腐处理的无缝钢管不采用焊接连接","采用螺纹连接时，管材采用机械切割","采用法兰连接时，衬垫不能凸人管内，其外边缘宜接近螺栓孔，不能放双垫或偏垫","安装后的螺纹根部有2～3扣外露螺纹，连接处外部清理干净并做防锈处理","管道末端采用防晃支架固定，支架与末端喷头间的距离不大于500mm"]
Which two of these correctly describe asymmetric routing and firewalls?（） [" only operational in routed mode"," only operational in transparent mode"," only eight interfaces can belong to an asymmetric routing group"," operational in both failover and non-failover configurations"," only operational when the firewall has been configured for failover"]
接触变质矿床特征：
