【单选题】当车床运转( )h后,需要进行一级保养。
【简答题】1She a ed an antenna to the radio. fasten or join (one thing to another)
【简答题】声音信号的数字化分为取样、 量化和_________。
【单选题】在主要放牧区细粒棘球蚴绦虫的终宿主和中间宿主是:( )
【简答题】Write down the corresponding English word. vt. fasten or join (one thing to another)系,贴,连接
【简答题】fasten or join (one thing to another 系,贴
【简答题】vt. fasten or join (one to another) 系,贴,连接
【单选题】对扁桃体摘除术后的护嘱,哪项是错误的( )