在○中填入“<”“>”“=”。
4/5-2/5○9/10-7/10 5/8-3/8○3/4-1/4
3/12+5/12○1/6+3/6 3/7+4/7○4/11+7/11
4/5-2/5>9/10-7/10 5/8-3/8<3/4-1/4
3/12+5/12=1/6+3/6 3/7+4/7=4/11+7/11
计算。
7/8-5/6= 2/9+1/2= 6/7-2/3= 3/10+1/4=
3/7+1/9= 1/3-1/5= 1/6+1/4= 5/7-1/5=
7/8-5/6=1/24 2/9+1/2=13/18 6/7-2/3=4/21 3/10+1/4=11/20
3/7+1/9=34/63 1/3-1/5=2/15 1/6+1/4=5/12 5/7-1/5=18/35
{0、2、1、4、3、9、5、8、6、7}是以数组形式存储的最小堆,删除堆顶元素0后的结果是()
A.{2、1、4、3、9、5、8、6、7}
B.{1、2、5、4、3、9、8、6、7}
C.{2、3、1、4、7、9、5、8、6}
D.{1、2、5、4、3、9、7、8、6}
计算:
(1)(-8)-(-1) (2)45+(-30)
(3)-1.5-(-11.5) (4)-1/4-(-1/2)
(5)15-[1-(-20-4)] (6)-40-28-(-19)+(-24)
(7)22.54+(-4.4)+(-12.54)+4.4
(8) (2/3-1/2)-(1/3-5/6)
(9)2.4-(-3/5)+(-3.1)+4/5 (10)(-6/13)+(-7/13)-(-2)
(11)3/4-(-11/6)+(-7/3)
(12)11+(-22)-3×(-11)
(13)(-0.1)÷1/2×(-100)
(14)(-3/4)×(-2/3 - 1/3) ×0
(15)(-2)3-32
(16)23÷[(-2)3-(-4)]
(17)(3/4-7/8)÷(-7/8)
(18)(-60)×(3/4+5/6)
(1)(-8)-(-1)=-7
(2)45+(-30)=15
(3)-1.5-(-11.5)=10
(4)-1/4-(-1/2)=1/4
(5)15-[1-(-20-4)]=-10 (6)-40-28-(-19)+(-24)=-73
(7)22.54+(-4.4)+(-12.54)+4.4=10
(8) (2/3-1/2)-(1/3-5/6)=-1
(9)2.4-(-3/5)+(-3.1)+4/5=0.7 (10)(-6/13)+(-7/13)-(-2)=1
(11)3/4-(-11/6)+(-7/3)=1/4
(12)11+(-22)-3×(-11)=22
(13)(-0.1) ÷1/2×(-100)=20
(14)(-3/4) ×(-2/3 - 1/3) ×0=0
(15)(-2)3-32=-17
(16)23÷[(-2)3-(-4)]=-23/4
(17)(3/4-7/8) ÷(-7/8)=1/7
(18)(-60) ×(3/4+5/6)=-95
1,10,2, ,3,8,4,7,5,6
A.6 B.7 C.8 D.9
171 2007200723 4=1+1-25255225412585=45=5511. 2. 21. 2. 96%4%868938948996% 6123452066/403350%a/banba/b1/n1/2=0.51/3=0.33 2/3=4/6=6/9=0.661/4=0.251/5=0.21/6=0.161/7=0.142857(2/7=0.285714,3/7=0.428571,4/7=0.576428,5/7=0.74285,6/7=0.857142) 300/14=21/7=2.1426571/8=0.125(7/8=0.875,3/8=0.375,5/8=0.625)1/9=0.11(4/9=0.44)1/10=0.11/11=0.0909(4/11=0.3636)44.3%44.5%44.4%4/978 9n10
下面程序段是计算()公式的。s=0:t=1Fori=1To10t=t*is=s+tNexti
A.s=1+2+3+4+5+6+7+8+9+10
B.s=1*2*3*4*5*6*7*8*9*10
C.s=1!+2!+3!+4!+5!+6!+7!+8!+9!+10!
D.s=1+2*3+3*4+4*5+5*6+6*7+7*8+8*9+9*10
有以下程序:程序运行后的输出结果是( )。
A.1,2,3,4,5,6,7,8,9,10,
B.10,9,8,7,6,5,4,3,2,1,
C.2,3,1,6,8,7,5,4,10,9,
D.10,9,8,7,6,1,2,3,4,5,
有以下程序:程序的运行结果是( )。
A.1,2,3,4,5,6,7,8,9,0,
B.2,1,4,3,6,5,8,7,0,9,
C.0,9,8,7,6,5,4,3,2,1,
D.0,1,2,3,4,5,6,7,8,9,
当执行下面的语句定义一维数组a后,此数组的所有元素为 ( ) inta[10];
A.a[1],a[2],a[3],a[4],a[5],a[6],a[8],a[9],a[10],a[10]
B.a[0],a[1],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9]
C.a[0],a[2],a[3],a[4],a[5],a[6],a[7],a[8],a[9],a[10]
D.a[1],a[2],a [3],a[4],a [5],a [9],a [7],a [8],a [9],a [10],a [11]
有以下程序:程序运行后的输出结果是( )。
A.1,2,3,4,5,6,7,8,9,10,
B.1,2,7,6,3,4,5,8,9,10,
C.1,2,7,6,5,4,3,8,9,10,
D.1,2,9,8,7,6,5,4,3,l0,