发生丁二烯大量泄漏时,要根据泄漏部位、处理难度及对生产影响程度等情况来决定是否紧急停车
1、正确正确
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Donotletthis__(say)ofyou.Itshowsanunattractiveindifferencetoyouremployerandtoyourjob.
一个物体在x轴上作直线运动，位置随时间变化的关系为x=2+4t2(SI)，则t=2s时物体加速度大小为____________m/s2
Onehundredmiles____(be)toofartotravelonfoot.
Ifyouareunabletocometotheinterview,for______reasonyoushouldinformusaheadoftime.
Justafewyearsago，Tanyawas___(home)andbeggingformoneyinfrontofasupermarketinNewYorkCity.
