设集合A={0,2,4,5,8,9},A上的等价关系R={<;x,y>;|4|(x-y)}(x-y)能被4整除),则对应于R的A的划分是()
A: {{0,2,4,8},{5,9}}
B: {{0},{2,4,8},{5,9}}
C: {{0,4,8},{2},{5,9}}
D: {{0},{2},{4},{8},{5},{9}}
A: {{0,2,4,8},{5,9}}
B: {{0},{2,4,8},{5,9}}
C: {{0,4,8},{2},{5,9}}
D: {{0},{2},{4},{8},{5},{9}}
举一反三
- 【计算题】5 ×8= 6×4= 7×7= 9×5= 2×3= 9 ×2= 8×9= 7×8= 5×5= 4×3= 5+8= 6 ×6= 3×7= 4×8= 9×3= 1 ×2= 9×9= 6×8= 8×0= 4×7=
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- set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为? A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}
- 利用行列式的性质计算下列行列式的值1 2 0 0 02 5 0 0 0 9 8 1 2 37 6 4 5 65 4 7 8 9
- 有代码片段:function f(y) {var x=y*y;return x;} for(var x=0;x< 5;x++) {y=f(x);document.writeln(y);}输出结果是( )。 A: 0 1 2 3 4 B: 0 1 4 9 16 C: 0 1 4 9 16 25 D: 0 1 2 3 4 5