关于并行数据库结构,以下说法错误的是
B
暂无解析
设A为三阶矩阵,P为可逆矩阵,使得P-1AP=012
某人向同一目标独立重复射击,每次射击命中目标的概率为p(0<p<1),则此人第4次射击恰好第2次命中目标的概率为()
Othersarguethatsincetheearthhasenduredalongstringoficeagesinthelasttwomilliontothreemillionyears,anywarmingis________tobetemporary.
________(catch)intherain,hewaswettotheskin.
Allherhardwork__________intheend,andshefinallypassedtheexam.