A.88
B.90
C.84
D.86
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
2 5罗5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
[单选题]数组(1,3,5,6,8,12,15,19)的极差是()A . 1B . 18C . 19D . 7
[单选题]:3,2,8,12,28,()。A.15 B.32 C.27 D.52
[单选题]3,2,8,12,28,( )。A. 15B. 32C. 27D. 52
[单选题]3,2,8,12,28,()。A.15 B.32 C.27 D.52
[单选题]数组(1,3,5,6,8,12,15,19)的中位数址()A . 6B . 7C . 8D . 9
计算:(1)23×(-5)-(-3)÷(3)/(128);(2)-7×(-3)×(-0.5)+(-12)×(-2.6);(3)(1(3)/(4)-(7)/(8)
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 2
按规律填数。-|||-1 2 3 4 5 15-|||-6 7 8 9 10 ?-|||-11 12 13 14 15 ?-|||-16 17 18 19 20