13 15 19 ( ) 33 A.23 B.25 C.27 D.22

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131519()33A.23B.25C.27D.22131519()33A.23B.25C.27D.22131519()33A.23B.25C.27D.22后项减前项成等差数列2,4,6,8所以131

13 15 19 ( ) 33 A.23 B.25 C.27 D.22
13 15 19 ( ) 33 A.23 B.25 C.27 D.22

13 15 19 ( ) 33 A.23 B.25 C.27 D.22
后项减前项成等差数列2,4,6,8所以13 15 19 25 33

(13-a)/(11-a)+(17-a)/(15-a)=(19-a)/(17-a)+(11-a)/(9-a)的解是多少 A+A+A+B+B+=23,B+B+A+A+A+A+A=33,A=?,B=? 急求下面要求的excel公式怎么设?1%﹤A≤5% 11% 5%﹤A≤10% 13% 10%﹤A≤15% 15% 15%﹤A≤20% 17% 20%﹤A≤30% 19% 30%﹤A≤40% 21% 40%﹤A≤50% 23% 50%﹤A≤60% 25% 60%﹤A 27% 23-a-{10a-[(5a-15)-(4-6a)]} int a[3][4]={{1,3,5,7},{9,11,13,15},{17,19,21,23}};注意:地址则输出地址,变量则输出变量值,设数组a的首地址为2000求(1) a[2][1] (2)a[1] (3)a (4)a+1 (5)*a+1 (6)*(a+1) (7)a[2]+1 (8)*(a+1)+1 (9)*(*a+2)+2)一个int类型占四 13 15 19 ( ) 33 A.23 B.25 C.27 D.22 设有如下数组定义:int a[3][4]={{1,3,5,7},{9,11,13,15},{17,19,21,23}}; 计算下面各项的值(设数组a的首地址为2000,一个int类型数占四个字节).(1)a[2][1] (2)a[1] (3)a (4)a+1 (5)*a+1( 变量x1,x2,x3,x4 与变量y1,y2,y3,y4有下面的线性关系括号里的是下标x1=a(11)y1+a(12)y2+a(13)y3+a(14)y4x2=a(21)y1+a(22)y2+a(23)y3+a(24)y4x3=a(31)y1+a(32)y2+a(33)y3+a(34)y4x4=a(41)y1+a(42)y2+a(43)y3+y(44)y4已知其系数行列式不为0 已知等式①a+a+b=23;②b+a+b=16.如果a,b分别表示一个数,那么a+b是已知等式①a+a+b=23;②b+a+b=16.如果a,b分别表示一个数,那么a+b是( ).A.13 B.14 C.15 D.16 int a[3][4]={{1,3,5,7},{9,11,13,15},{17,19,21,23}}; *(*(a+2)+2)是什么?*(a+1)+1呢a的首地址是2000 一个int类型站4字节 计算:a^15除以(-a)^13 和指针有关的求分析.参考答案说是C若int a[3][4]={{1,3,5,7},{9,11,13,15},{17,19,21,23}};,则数值为9的表达式是().A.a[1] B.*(a+1) C.*(*(a+1)) D.*a+1 已知a满足等式a^2-a-1=0,求代数式a^8+7a^-4的值解:由a^2-a-1=0得,a^2=a+1, 于是a^4=(a+1)^2=a^2+2a+1=3a+2 a^8=(3a+2)^2=9a^2+12a+4=21a+13 a^8+7a^-4=21a+13+7/(3a+2) =(63a^2+81a+26+7)/(3a+2) =(63a+63+81a+33)/(3a+2) =(144a+96)/(3a+2)=48 请 25%a+23%b-15%ab=33%求a、b的值, 试证明代数式-(a-23)-{10a-[5a-15-(4-6a)]} 逻辑运算中A表示什么 (1) 0 · A = 0 (10) 1' = 0; 0' = 1  (2) 1 · A = A (11) 1 + A = 1  (3) A · A = A (12) 0 + A = A  (4) A · A' = 0 (13) A + A = A  (5) A · B = B · A (14) A + A' = 1  (6) A·(B·C) = (A·B)·C (15) A 逻辑运算中的A表示什么 (1) 0 · A = 0 (10) 1' = 0; 0' = 1  (2) 1 · A = A (11) 1 + A = 1  (3) A · A = A (12) 0 + A = A  (4) A · A' = 0 (13) A + A = A  (5) A · B = B · A (14) A + A' = 1  (6) A·(B·C) = (A·B)·C (15 行测数字推理题(1) 3,4( ),39,103.A.7 B.9 C.11 D.12(2)40,23,( )6,11 A.7 B.13 C.17 D.19(3)1,2,2,( )8,32 A.4 B.3 C.5 D.6(4)10,11,15,34,58,105( ) A.182 B.149 C.134 D.197(5)1,7,10,( ),3,4,-1 A.7 B.6 C.8 D.5(6)3,4,7,16( ),124 A.33 B.35