• 2022-07-02 问题

    Int(average(row(A1)+row(D6)))的结果为3。

    Int(average(row(A1)+row(D6)))的结果为3。

  • 2022-07-02 问题

    Int(average(row(A1)+row(D6)))的结果为()。 A: 1 B: 2 C: 3 D: 4

    Int(average(row(A1)+row(D6)))的结果为()。 A: 1 B: 2 C: 3 D: 4

  • 2022-06-11 问题

    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

    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

  • 2022-07-02 问题

    下面程序运行后输出是_______。a = [1, 2, 3, 4, [5, 6], [7, 8, 9]]s = 0for row in a: if type(row)==list: for elem in row: s += elem else: s+=rowprint(s)

    下面程序运行后输出是_______。a = [1, 2, 3, 4, [5, 6], [7, 8, 9]]s = 0for row in a: if type(row)==list: for elem in row: s += elem else: s+=rowprint(s)

  • 2022-05-31 问题

    What grade is the woman in A: Row one. B: Row two. C: Row four.

    What grade is the woman in A: Row one. B: Row two. C: Row four.

  • 2022-06-05 问题

    A row of children are standing in front of a row of chairs.

    A row of children are standing in front of a row of chairs.

  • 2022-07-24 问题

    美国和加拿大的车厘子的常见规格为() A: 9.5 Row B: 10 Row C: 10.5 Row D: 11 Row

    美国和加拿大的车厘子的常见规格为() A: 9.5 Row B: 10 Row C: 10.5 Row D: 11 Row

  • 2022-06-01 问题

    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]

    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]

  • 2022-06-05 问题

    ‌If A is row equivalent to B, then A and B have the same row space.‌

    ‌If A is row equivalent to B, then A and B have the same row space.‌

  • 2022-06-01 问题

    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]]

    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]]

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