• 2021-04-14 问题

    【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]

    【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]

  • 2022-06-09 问题

    已知光栅常数为【图片】cm,缝宽为【图片】cm,波长为600nm的单色光垂直入射在光栅上,实际呈现的全部级数是 A: 0,±1,±2,±3,±4,±5 B: 0,±1,±3,±5,±7,±9 C: 0,±1,±2,±4,±5,±7,±8 D: 0,±1,±2,±3,±5,±6,±7,±9

    已知光栅常数为【图片】cm,缝宽为【图片】cm,波长为600nm的单色光垂直入射在光栅上,实际呈现的全部级数是 A: 0,±1,±2,±3,±4,±5 B: 0,±1,±3,±5,±7,±9 C: 0,±1,±2,±4,±5,±7,±8 D: 0,±1,±2,±3,±5,±6,±7,±9

  • 2022-06-14 问题

    9:30 (1) 11:00 (2) 14:00 (3) (4) 2()

    9:30 (1) 11:00 (2) 14:00 (3) (4) 2()

  • 2022-06-06 问题

    已知光栅常数为[img=89x24]18032f34560942c.png[/img]cm,缝宽为[img=80x24]18032f345df2075.png[/img]cm,波长为600nm的单色光垂直入射在光栅上,实际呈现的全部级数是 A: 0,±1,±2,±3,±4,±5 B: 0,±1,±3,±5,±7,±9 C: 0,±1,±2,±4,±5,±7,±8 D: 0,±1,±2,±3,±5,±6,±7,±9

    已知光栅常数为[img=89x24]18032f34560942c.png[/img]cm,缝宽为[img=80x24]18032f345df2075.png[/img]cm,波长为600nm的单色光垂直入射在光栅上,实际呈现的全部级数是 A: 0,±1,±2,±3,±4,±5 B: 0,±1,±3,±5,±7,±9 C: 0,±1,±2,±4,±5,±7,±8 D: 0,±1,±2,±3,±5,±6,±7,±9

  • 2021-04-14 问题

    有下列四组量子数: (1) n = 3,l = 2,ml = 0,mz=1/2. (2) n = 3,l = 3,ml = 1,mz=1/2. (3) n = 3,l = 1,ml = -1,mz=-1/2. (4) n = 3,l = 0,ml = 0, mz=-1/2. 其中可以描述原子中电子状态的

    有下列四组量子数: (1) n = 3,l = 2,ml = 0,mz=1/2. (2) n = 3,l = 3,ml = 1,mz=1/2. (3) n = 3,l = 1,ml = -1,mz=-1/2. (4) n = 3,l = 0,ml = 0, mz=-1/2. 其中可以描述原子中电子状态的

  • 2022-05-30 问题

    设m=9,则( )为绝对值最小余数。 A: r=-5,-4,-3,-2,-1,0,1,2,3 B: r=-4,-3,-2,-1,0,1,2,3,4 C: r=-3,-2,-1,0,1,2,3,4,5 D: 以上都不对

    设m=9,则( )为绝对值最小余数。 A: r=-5,-4,-3,-2,-1,0,1,2,3 B: r=-4,-3,-2,-1,0,1,2,3,4 C: r=-3,-2,-1,0,1,2,3,4,5 D: 以上都不对

  • 2022-06-10 问题

    表达式:() (()9/2)—(9)%2的值是() A: 0 B: 3 C: 4 D: 5

    表达式:() (()9/2)—(9)%2的值是() A: 0 B: 3 C: 4 D: 5

  • 2022-06-16 问题

    判定系数R2的取值范围为() A: 0≤R≤2 B: 0≤R≤1 C: 0≤R≤4 D: 1≤R≤4

    判定系数R2的取值范围为() A: 0≤R≤2 B: 0≤R≤1 C: 0≤R≤4 D: 1≤R≤4

  • 2022-06-07 问题

    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}}

    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}}

  • 2021-04-14 问题

    有下列四组量子数: (1)00a0 n = 3,l = 2,ml = 0,mz=1/2. (2)00a0 n = 3,l = 3,ml = 1,mz=1/2. (3)00a0 n = 3,l = 1,ml = -1,mz=-1/2. (4)00a0 n = 3,l = 0,ml = 0, mz=-1/2. 其中可以描述原子中电子状态的

    有下列四组量子数: (1)00a0 n = 3,l = 2,ml = 0,mz=1/2. (2)00a0 n = 3,l = 3,ml = 1,mz=1/2. (3)00a0 n = 3,l = 1,ml = -1,mz=-1/2. (4)00a0 n = 3,l = 0,ml = 0, mz=-1/2. 其中可以描述原子中电子状态的

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