【单选题】设A为n阶矩阵,k为常数,则(kA) * 等于( ).
D.
k\r\n n(n-1) \r\nA\r\n *
【单选题】An account linked with another account that has an opposite normal balance and that is subtracted from the balance of the related account is a(n):
【简答题】对于正数n和a,其中a ka的最大整数,那么_________对于正数n和a,其中a !=(n ,其中k是满足n>ka的最大整数,那么 _________
【单选题】当灌注桩直径或桩截面边长≥800mm时,桩顶嵌入承台长度( )
【单选题】Let A be a n×n matrix (n ≥ 3) and A∗ is adjoint ofA. Suppose that k 【图片】0,±1, then (kA)∗ = ( ).