【简答题】当板件厚度或宽度在一侧相差大于4mm时,应做坡度不大于1:2.5(静载)或_________ (动载)的斜角,以平缓过度,减小应力集中
【单选题】以下不属于数据库系统(DBS)的组成的是()
【单选题】以下不属于数据库系统(DBS)的组成的是( )
C.
数据库管理员(DataBase Administrator,DBA)
【简答题】Signs can sometimes be seen at the entrance of a house, expressing that a tramp(流浪汉)has passed. This special sign-language is frequently 50 by tramps to inform their 51 whether the host of a certain h...
【单选题】对《灯下漫笔》内容理解有误的一项是( )