0,1,(),2,3,4,4,5
A. 0;B. 4;C. 2;D. 3
第1题:
下列数组初始化语句哪些是正确的
A.int[] nums = new int[]{0,1,2,3,4}
B.int[] nums2 = {0,1,2,3,4,5}
C.int[][] num_1 = {new int[]{0,1},new int[]{0,1,2},new int[]{0,1,2,3}}
D.int[][] num_2 = {{0,1},{0,1,2},{0,1,2,3}}
第2题:
以下会返回错误的语句是【 】。
A.d1 = {}
B.d2 = {0:1}
C.d3 = dict([0,1],[2,3])
D.d4 = dict(([0,1],[2,3]))
第3题:
Z4={0,1,2,3}, ⊕为模4的加法,H={0,2} , 群<Z4,⊕>的子群<H,⊕>的左陪集为()
A.{0,1,2,3}
B.{0,1}
C.{0,2}
D.{0,3}
第4题:
下列数组初始化语句哪些是正确的
A.int[] nums = new int[]{0,1,2,3,4};
B.int[] nums2 = {0,1,2,3,4,5};
C.int[][] num_1 = {new int[]{0,1},new int[]{0,1,2},new int[]{0,1,2,3}};
D.int[][] num_2 = {{0,1},{0,1,2},{0,1,2,3}};
第5题:
选择下列函数运行后的输出 fe[x_?NumericQ]:=x/2 {fe[6],fe[1.2],fe[u],fe[{0,1}]}
A.{3,1.2,fe[u],fe[{0, 1}]}
B.{3,0.6,fe[u],fe[{0, 1}]}
C.{3,0.6,u/2,fe[{0, 1}]}
D.{3,0.6,fe[u],{0, 1/2}}