一位用户致电帮助台,报告说 Windows XP 工作站启动后无法连接到网络,弹出窗口显示“连接受限或未连接”。技术人员让用户输入 ipconfig /all 命令。用户报告说 IP 地址是 169.254.69.196,子网掩码是 255.255.0.0,而对于 DNS 服务器的 IP 地址则未显示任何内容。此问题的原因是什么?
【简答题】To address biosafety issues related to synthetic microbes, such as horizontal gene transfer and emergence of superbugs, technical efforts have been made to develop laboratory level precautionary measu...