【单选题】A rock cracks when ______.
【单选题】用 PING 命令不能检查 ________
【简答题】【问题 4】(1分) 如果公司内网PC1 不能访问Internet,使用 ping命令检查到网关 192.168.0.1 的连通性时得到结果如图3-4所示,请分析问题所在。
【判断题】一个C语言程序由一个或多个源程序文件组成。
【单选题】Grandpa gets very whenever he talks about the war in which he fought many years ago.
【简答题】一个源程序文件可由一个或多个( )组成。
【单选题】Grandpa gets very _______ whenever he talks about the war in which he fought many years ago.
【单选题】Grandpa is old, but he is still very ____.