• 2022-06-05 问题

    下列各组量子数中哪一组是正确的 A: n=3,l=3,m=3 B: n=3,l=2,m=3 C: n=3,l=2,m=2 D: n=3,l=1,m=﹣2

    下列各组量子数中哪一组是正确的 A: n=3,l=3,m=3 B: n=3,l=2,m=3 C: n=3,l=2,m=2 D: n=3,l=1,m=﹣2

  • 2022-10-29 问题

    以下程序的执行结果是。 L = [1, 3, 5, 7, 9] print(L.pop(-3), end = ) print(L.remove(L[0]), end = ) print(L) A: 5 1 [3, 7, 9] B: 5 1 [1, 3, 7, 9] C: 5 None [3, 7, 9] D: 5 None [1, 3, 7, 9]

    以下程序的执行结果是。 L = [1, 3, 5, 7, 9] print(L.pop(-3), end = ) print(L.remove(L[0]), end = ) print(L) A: 5 1 [3, 7, 9] B: 5 1 [1, 3, 7, 9] C: 5 None [3, 7, 9] D: 5 None [1, 3, 7, 9]

  • 2022-11-03 问题

    类氢原子量子数为n = 4、l = 3的轨道简并度为 A: 3 B: 5 C: 7 D: 9

    类氢原子量子数为n = 4、l = 3的轨道简并度为 A: 3 B: 5 C: 7 D: 9

  • 2021-04-14 问题

    【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=

    【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=

  • 2022-06-03 问题

    阅读程序。程序运行结果是: L=[-2,7,-3,4,9] print(sorted(L,key=lambda x:abs(x))) A: A.[-3, -2, 4, 7, 9] B: B.[-2, -3, 4, 7, 9] C: [2,3,4,7,9] D: [3,2,4,7,9]

    阅读程序。程序运行结果是: L=[-2,7,-3,4,9] print(sorted(L,key=lambda x:abs(x))) A: A.[-3, -2, 4, 7, 9] B: B.[-2, -3, 4, 7, 9] C: [2,3,4,7,9] D: [3,2,4,7,9]

  • 2022-06-10 问题

    在X线诊断能量范围内,Q、N的取值分别是() A: Q=2、N=2 B: Q=1、N=2 C: Q=1、N=1 D: Q=3、N=2 E: Q=2、N=3

    在X线诊断能量范围内,Q、N的取值分别是() A: Q=2、N=2 B: Q=1、N=2 C: Q=1、N=1 D: Q=3、N=2 E: Q=2、N=3

  • 2022-06-14 问题

    下列各组量子数合理的是 A: n = 3,l = 2,m = 3 B: n = 2,l = 4,m = 1 C: n = 4,l = 1,m = 2 D: n = 3,l = 3,m = 1

    下列各组量子数合理的是 A: n = 3,l = 2,m = 3 B: n = 2,l = 4,m = 1 C: n = 4,l = 1,m = 2 D: n = 3,l = 3,m = 1

  • 2022-11-03 问题

    下面氢原子的电子组态,请问哪一个电子组态是合理的组合? A: n = 3, l = 2, m_l = -2, m_s = + 1/2 B: n = 3, l =2, m_l = -2, m_s = + 1 C: n = 3, l =3, m_l = -2, m_s = + 1/2 D: n = 3, l =2, m_l = 3, m_s = + 1/2

    下面氢原子的电子组态,请问哪一个电子组态是合理的组合? A: n = 3, l = 2, m_l = -2, m_s = + 1/2 B: n = 3, l =2, m_l = -2, m_s = + 1 C: n = 3, l =3, m_l = -2, m_s = + 1/2 D: n = 3, l =2, m_l = 3, m_s = + 1/2

  • 2022-06-14 问题

    下列各组量子数,正确的是( ) A: n = 3,l = 2,m = 1 B: n = 3,l = 1,m = 2 C: n = 3,l = 0,m = 1 D: n = 3,l = 3,m = 1

    下列各组量子数,正确的是( ) A: n = 3,l = 2,m = 1 B: n = 3,l = 1,m = 2 C: n = 3,l = 0,m = 1 D: n = 3,l = 3,m = 1

  • 2022-11-01 问题

    在下列六组量子数中,正确的是① n=3,l= 1,m=-1 ② n = 3,l= 0,m = 0③ n = 2,l= 2 ,m=-1 ④ n = 2, l = 1 ,m = 0 ⑤ n = 2,l = 0,m =-1 ⑥ n= 2,l = 3 , m= 2 A: (1),(2),(4) B: (2),(4),(6) C: (1),(2),(3) D: (1),(3),(5)

    在下列六组量子数中,正确的是① n=3,l= 1,m=-1 ② n = 3,l= 0,m = 0③ n = 2,l= 2 ,m=-1 ④ n = 2, l = 1 ,m = 0 ⑤ n = 2,l = 0,m =-1 ⑥ n= 2,l = 3 , m= 2 A: (1),(2),(4) B: (2),(4),(6) C: (1),(2),(3) D: (1),(3),(5)

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