设D=
,求A11+A12+A13+A14=()。其中A1j为元素
A . -1
B . 1
C . 0
D . -2
[主观题]化简F(A,B,C,D)= m(1,3,4,5,10,11,12,13,14,15)的和。(威盛)
[单选题]已知甲的12%为13,乙的13%为14,丙的14%Y;J15,丁的15%为16,则甲、乙、丙、丁四个数中最大的数是( )。A.甲B.乙C.丙D.丁
[单选题]I (11) (12) English girl. (13) name is Joan. I'm 12. I have a Chinese (14) . (15) name is Sun Hui. We're in the same(相同的)class. All her family (16) in China now. Her father is a teacher in our school. (17) teaches English.(18) mother is a nurse(护士)
[单选题]冷浴的水温为A.10~11℃B.12~13℃C.14~15℃D.16~17℃E.18~20℃
[单选题]过氧乙酸原液浓度低于何值时禁止使用A.11%B.12%C.13%D.14%E.15%
[单选题]11,14,12,20,13,30,( ),44,15,( )A.15,55B.14,60C.14,62D.15,60
[单选题]11,14,12,20,13,30,(),44,15,()A.15,55B.14,60C.14,62D.15,60
[单选题]11,14,12,20,13,30,(),44,15,()A.15,55B.14,60C.14,62D.15,60
Y(A,B,C,D)= sum m(2,4,6,8)+d(10,11,12,13,14,15)A. BD'+AC'+CD' )B. BD'+AD'+CD'C.
设D=.31−12−513−4201−11−53−3.,D的(i,j)元的代数余子式记作Aij,求A31+3A32−2A33+2A34.设D=.31−12−51