设有关系[tex=5.643x1.286]jaNVXSPEztwaMMZ0A6NDIw0SsUNRZy9Fp0AaCbWObCU=[/tex]和关系[tex=5.714x1.286]mbzaPQGCG2es40mQuRVt+Makvss4G3zyJ4QQv+2lOgY=[/tex] ， 那么与[tex=2.786x1.286]zkoGkHImh43Cde1Pc3m62EgFPOPWGvgAomU2GrIuZcY=[/tex]等价的关系代数表达式是
未知类型：{'options': ['[tex=10.929x1.286]VkILFVIN4CbOdD86niENwjgI+eyqx6ccPdwdM1v7ERyZmbaVEz50C5GvJyIJSdtagjqQ0K+95IshQINJlZavCPTlKmxoTp0i3RL9qCdo+xo=[/tex]', '[tex=10.929x1.286]nLsKQz5c6ROf2Giwz6OiAT7vODpFjf17UEpnJdUUkEdweU2XcIip1sF4nYPzJvHL813d14cnolE0obXI5QSHSawyUbMwi415Mc7dC4hQy20=[/tex]', '[tex=10.929x1.286]nLsKQz5c6ROf2Giwz6OiAX1E1RU7cdA39FklaOUeuoSOhAiiBV3C7A0FYW0HS0uIAOUeKf9WUa7xnNlUklqgMyvoA9Hgfp4V4Zv8elvV6CQ=[/tex]', '[tex=10.929x1.286]F+ajrqln5Ri6Da6j/boO40KWlJclTOQfmrxwcaOyrTzj/WZ95jzbl3GAIpGdE2AagvndMc0SheMkq28g4fawOyuWjQe9oIpWq/mw9b7dxek=[/tex]'], 'type': 102}
未知类型：{'options': ['[tex=10.929x1.286]VkILFVIN4CbOdD86niENwjgI+eyqx6ccPdwdM1v7ERyZmbaVEz50C5GvJyIJSdtagjqQ0K+95IshQINJlZavCPTlKmxoTp0i3RL9qCdo+xo=[/tex]', '[tex=10.929x1.286]nLsKQz5c6ROf2Giwz6OiAT7vODpFjf17UEpnJdUUkEdweU2XcIip1sF4nYPzJvHL813d14cnolE0obXI5QSHSawyUbMwi415Mc7dC4hQy20=[/tex]', '[tex=10.929x1.286]nLsKQz5c6ROf2Giwz6OiAX1E1RU7cdA39FklaOUeuoSOhAiiBV3C7A0FYW0HS0uIAOUeKf9WUa7xnNlUklqgMyvoA9Hgfp4V4Zv8elvV6CQ=[/tex]', '[tex=10.929x1.286]F+ajrqln5Ri6Da6j/boO40KWlJclTOQfmrxwcaOyrTzj/WZ95jzbl3GAIpGdE2AagvndMc0SheMkq28g4fawOyuWjQe9oIpWq/mw9b7dxek=[/tex]'], 'type': 102}
举一反三
- set1 = {x for x in range(10)} print(set1) 以上代码的运行结果为？ A: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9} B: {0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10} C: {1, 2, 3, 4, 5, 6, 7, 8, 9} D: {1, 2, 3, 4, 5, 6, 7, 8, 9,10}
- 设有关系[tex=5.643x1.286]jaNVXSPEztwaMMZ0A6NDIw0SsUNRZy9Fp0AaCbWObCU=[/tex]和关系[tex=5.714x1.286]mbzaPQGCG2es40mQuRVt+Makvss4G3zyJ4QQv+2lOgY=[/tex] ， 那么与[tex=2.786x1.286]zkoGkHImh43Cde1Pc3m62EgFPOPWGvgAomU2GrIuZcY=[/tex]等价的关系代数表达式是 未知类型：{'options': ['[tex=10.929x1.286]VkILFVIN4CbOdD86niENwjgI+eyqx6ccPdwdM1v7ERyZmbaVEz50C5GvJyIJSdtagjqQ0K+95IshQINJlZavCPTlKmxoTp0i3RL9qCdo+xo=[/tex]', '[tex=10.929x1.286]nLsKQz5c6ROf2Giwz6OiAT7vODpFjf17UEpnJdUUkEdweU2XcIip1sF4nYPzJvHL813d14cnolE0obXI5QSHSawyUbMwi415Mc7dC4hQy20=[/tex]', '[tex=10.929x1.286]nLsKQz5c6ROf2Giwz6OiAX1E1RU7cdA39FklaOUeuoSOhAiiBV3C7A0FYW0HS0uIAOUeKf9WUa7xnNlUklqgMyvoA9Hgfp4V4Zv8elvV6CQ=[/tex]', '[tex=10.929x1.286]F+ajrqln5Ri6Da6j/boO40KWlJclTOQfmrxwcaOyrTzj/WZ95jzbl3GAIpGdE2AagvndMc0SheMkq28g4fawOyuWjQe9oIpWq/mw9b7dxek=[/tex]'], 'type': 102}
- 【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=
- 设DES加密算法中的一个S盒为： 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 0 1 2 3 14 4 13 1 2 15 11 8 3 10 6 12 5 9 0 7 0 15 7 4 14 2 13 1 10 6 12 11 9 5 3 8 4 1 14 8 13 6 2 11 15 12 9 7 3 10 5 0 15 12 8 2 4 9 1 7 5 11 A: 1010 B: 0001 C: 1011 D: 0111
- 输出九九乘法表。 1 2 3 4 5 6 7 8 9 --------------------------------------------------------------------- 1*1=1 2*1=2 2*2=4 3*1=3 3*2=6 3*3=9 4*1=4 4*2=8 4*3=12 4*4=16 5*1=5 5*2=10 5*3=15 5*4=20 5*5=25 6*1=6 6*2=12 6*3=18 6*4=24 6*5=30 6*6=36 7*1=7 7*2=14 7*3=21 7*4=28 7*5=35 7*6=42 7*7=49 8*1=8 8*2=16 8*3=24 8*4=32 8*5=40 8*6=48 8*7=56 8*8=64 9*1=9 9*2=18 9*3=27 9*4=36 9*5=45 9*6=54 9*7=63 9*8=72 9*9=81