设4阶矩阵A=(aij )不可逆,a12 的代数余子式A12不等于0,为矩阵A的列向量组
C
若函数在x=0处连续,则()
You________gonow.It’sgettinglate.
ShegotajobasanassistantstagemanagerattheCambridgeArtsFestivalTheatre,thinkingthatitmight________toacareerasaplaywright(剧作家).
Matteristhename________(give)toeverythingwhichhasweightandoccupiesspace.
TheTVstation,in________tomassivepopulardemand,decidedtocontinuethesoapopera(肥皂剧).