1.(88-3)1110110110110111.2.(89-3)行列式1111111111111111xxxx.3.(96-1)四阶行列式1122334400000000ababbaba的值等于(A)12341 2 3 4.a a a abb b b(B)12341 2 3 4.a a a abb b b(C)121 2343 4()().a abba ab b(D)232 3141 4()().a ab ba abb4.(99-2)记行列式21232221 22 2333 32 45 35443 57 43xxxxxxxxxxxxxxxx为()f x,则方程()0f x 的根的个数为(A)1.(B)2.(C)3.(D)4.5.(91-3)n阶行列式0000000000000000nababaabba.6.(96-3)五阶行列式100011000110001100011aaaaaaaaa.