题目内容
铝热焊缝距轨枕边不得小于70mm，轨条端头方正，左右股轨端相错量不应大于30mm。
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You are trying to bring up a new Testking location onto your existing frame relay network. The new location is using an Adtran router and you are having difficulties getting the site to connect via frame to your Cisco HQ router. What is the most likely cause of the problem?（）
属于企业信息化规划内容的是（）。
升降爆破材料时，炮工人员应事先和井上下把钩工联系好，并经矿当日值班领导批准后才准装罐。爆破材料严禁在井口和井底附近存放。
简述现代化的特征。
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