:29,11,5,13,-7,()。A.-1 B.10 C.22 D.23
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:1,3,3,5,7,9,13,15,( ),( )。A.19,21 B.19,23 C.21,23 D.27,30
23, 9, 7, 3, 1, 3, ( )。A.-5B.-11C.3D.1
计算:(1)(-8)+(-9); (2)(-17)+21; (3)(-12)+25; (4)45+(-23); (5)(-45)+23 (6)(-29)+(-31);(7)(-39)+(-45) (8)(-28)+37; (9)(-13)+0.
(23)下列程序运行时输出的结果是 Option Base 1 Const a=10 Priate Sub Form_Click() Dim x(a) As Integer k=-1 For i=1 To a x(i)=i*k k=(-1)*k Next i For i=1 To 10 Print x(i) Next i End Sub A.1 3 5 7 9 10 B.-1 -3 -5 -7 -9 C.-1 2-3 4-5 6-7 8-9 10 D.1-2 3-4 5-6 7-8 9-10
1/2,1,9/8,1,( )A.7/16B.5/32C.23/16D.25/32
-5, 27, 77, 61, 23, ( )A.7B.-7C.-5D.5