【单选题】以下关于应用层协议分类的描述中错误的是( )。
A.
支持 Internet 运行的全局基础设类应用层协议——DNS 协议
B.
支持各个网络系统运行的局部基础设施类应用层协议——DHCP 协议
【单选题】胃溃疡与溃疡型胃癌X线片上最主要的区别是
【简答题】《石油工程专业英语》P91 Please pair off following. drilling mud 钻井井场 drilling platform 钻井泥浆 drilling site 钻井平台 drilling rig 钻机 drilling line 车载式钻机 directional drilling 游动钢丝绳 offshore drilling 顿钻 pneumatic drill...
【单选题】A CNC machine tool can use different tools to perform turning, milling, and drilling continuously is called ( )
【单选题】A CNC machine tool can use different tools to perform turning, milling, and drilling continuously is called ( )
【单选题】This new model of drilling machine can ______ through solid rock ten meters deep.