1 . 在E x c e l 中求和的方法有哪些?
1 . 在E x c e l 中求和的方法有哪些?
相关考题:
某产品上不合格数X服从泊松分布P(λ),其中λ= 2,则下列各式中,正确的有()。A. E (X) =2 B.σ(X) =2C.Var (X) =2 D. P (X=l) =2e﹣2E. P (X>1) =1-2e 2
=5. 6X10-12,则Mg(OH)2 在0.01mol *L-1 NaOH溶液中的溶解度为:A.5. 6X10-9 1mol * L-1B. 5. 6 X10-10 mol * L-1C.5. 6X10-8 1mol * L-1D. 5. 6X10-5 mol * L-1
2、以下可重入表中哪些是循环表?A.(L1: (L2: (L1, a)))#B.D(A:(c), B:(e), C:(a, L:(b, A, d)))#C.(L: (a, L))#D.(L1:(a, b), (L1, c, L2:(d)), (L2, e, L3:(f, g)), L3)#E.(L1: (a, b, L2(x, y)), L2, L3: (s, t, L4:(q, L5:(w, L3, v), r)))#F.(x1, (y1, (a1, a2), y3), x3, (z1, z2))
以下可重入表中哪些是循环表?A.(L1: (L2: (L1, a)))#B.D(A:(c), B:(e), C:(a, L:(b, A, d)))#C.(L: (a, L))#D.(L1:(a, b), (L1, c, L2:(d)), (L2, e, L3:(f, g)), L3)#E.(L1: (a, b, L2(x, y)), L2, L3: (s, t, L4:(q, L5:(w, L3, v), r)))#F.(x1, (y1, (a1, a2), y3), x3, (z1, z2))