[单选] 安全生产责任制要求（）对本企业安全生产负具体领导责任。

风险管理 EPQ 目的酶基因的DNA区段一侧含有一酶切位点，可用什么方法对酶分子进行改造（） 寡核苷酸引物突变法。 盒式突变。 PCR定点突变法。 大引物突变法。 E易错PCR法。 16PF Your company has 10 servers that run windows server 2008. The servers have RDP enabled for server administration. RDP is configured to use default security settings. All administrators computers run widows vista. You need to ensure the RDP connections are as secure as possible. Which two actions should you perform? （） Set the security layer for each server to the RDP security layer.。 Configure the firewall on each server to block port 3389.。 Acquire user certificates from the internal certificate authority.。 Configure each server to allow connections only to remote desktop client computers that use network level authentication.。 安全生产责任制要求（）对本企业安全生产负具体领导责任。