A: 1
B: 2
C: 3
D: 4
举一反三
- Int(average(row(A1)+row(D6)))的结果为3。
- 假设数据在A1:A10单元格,如果想在B列直接从小到大显示排序结果则可以用这个公式()向下复制即可。(1.0) A: =SMALL($A$1:A$10,ROW(2:2)) B: =SMALL($A$1:$A$10,ROW(1:1)) C: =SMALL($A$1:$A$10,ROW(0:0)) D: =SMALL($A1:$A$10,ROW(1:1))
- 已知 vec = [[1,2], [3,4]],则表达式 [[row[i] for row in vec] for i in range(len(vec[0]))]的值为______________()_________。[/i] A: [1, 2, 3, 4] B: [[1, 2, 3], 4] C: [[1, 3], [2, 4]] D: [1, 2, [3, 4]]
- 选择填空,创建一个包含两行两列的表格。 row 1, cell 1: <>row 1, cell 2 <> row 2, cell 1 row 2, cell 2
- If a is a 3×3 matrix, the function of the function mean(a) is ( ). A: to calculate the average of each row of a B: to calculate the average of each column of a C: to increase a row of the average for a D: to increase a column of the average for a
内容
- 0
17e0be3e9ddcbf4.png如图所示,将姓名列这一组姓名纵向循环显示在一列中的计算公式,正确的是()。 A: =INDEX($A$2:$A$11,MOD(ROW(A10),10)+1) B: =INDEX($A$2:$A$11,INT(ROW(A10)/10)) C: =INDEX($A$2:$A$11,MOD(ROW(A10),10)+1,1) D: =INDEX($A$2:$A$11,INT(ROW(A10)/10),1)
- 1
下面错误的语句是( )。 A: int a[2][3] = {1, 2, 3, 4, 5, 6}; B: int a[2][3] = {{1, 2, 3}, {4, 5, 6}}; C: int a[ ][ ] = {{1, 2, 3}, {4, 5, 6}}; D: int a[ ][3] = {{1, 2, 3}, {4, 5, 6}};
- 2
下列对二维数组的正确定义是( )。 A: int a[2, 3] = {1, 2, 3, 4, 5, 6}; B: int a[][] = {1, 2 , 3, 4, 5, 6}; C: int a[2][] = {1, 2, 3, 4, 5, 6}; D: int a[][3] = {1, 2, 3, 4, 5, 6};
- 3
以下对二维数组进行正确初始化的是( )。 (1.0) A: int a[2][3] = {{1, 2}, {3, 4}, {5, 6; B: int a[][3] = {1, 2, 3, 4, 5, 6}; C: int a[2][] = {1, 2, 3, 4, 5, 6}; D: int a[2][] = {{1, 2}, {3, 4;
- 4
用R语言创建一个两行三列,1到6共6个数值的矩阵,正确的代码为( ) A: matrix(1:6,<br/>ncol=3, nrow=2) B: matrix(2,<br/>3,1:6 ) C: matrix(1:6,<br/>col=3, row=2) D: matrix(1:6,<br/>3:2)