• 2021-04-14 问题

    函数的定义域是/ananas/latex/p/1132315: (-∞, -3)∪(-3, +∞)|(-∞, -3)∪(-3, 3)∪(3, +∞)|(-∞, -3)∪(3, +∞)|(-∞, 3)∪(3, +∞)

    函数的定义域是/ananas/latex/p/1132315: (-∞, -3)∪(-3, +∞)|(-∞, -3)∪(-3, 3)∪(3, +∞)|(-∞, -3)∪(3, +∞)|(-∞, 3)∪(3, +∞)

  • 2021-04-14 问题

    智慧职教: 按自然数的乘法按定义计算3×5. 解   由定义5知3x5=(3x4) 3 =[(3x3) 3] 3 ={[(3x2) 3] 3} 3 ={{[(3x1) 3] 3} 3} 3 ={{[(3 3) 3] 3} 3} ={[(6 3) 3] 3} =(9 3) 3 =12 3=15 上述计算是(   )的

    智慧职教: 按自然数的乘法按定义计算3×5. 解   由定义5知3x5=(3x4) 3 =[(3x3) 3] 3 ={[(3x2) 3] 3} 3 ={{[(3x1) 3] 3} 3} 3 ={{[(3 3) 3] 3} 3} ={[(6 3) 3] 3} =(9 3) 3 =12 3=15 上述计算是(   )的

  • 2021-04-14 问题

    3√3—/3√3/

    3√3—/3√3/

  • 2022-06-14 问题

    下列各项中,哪一项不是Kirsch边缘检测中构建的模板() A: [5 5 5;-3 0 -3;-3 -3 -3] B: [-3 5 5;-3 0 5;-3 -3 -3] C: [5 5 5;-3 -3 0;-3 -3 -3] D: [-3 -3 -3;-3 0 -3;5 5 5]

    下列各项中,哪一项不是Kirsch边缘检测中构建的模板() A: [5 5 5;-3 0 -3;-3 -3 -3] B: [-3 5 5;-3 0 5;-3 -3 -3] C: [5 5 5;-3 -3 0;-3 -3 -3] D: [-3 -3 -3;-3 0 -3;5 5 5]

  • 2022-06-28 问题

    3⊥3与3┬3舌轴嵴形态的区别是() A: 舌轴嵴3┬3与3┬3同样明显 B: 舌轴嵴3┬3不如3⊥3明显 C: 舌轴嵴3┬3比3⊥3明显 D: 舌轴嵴3┬3与3⊥3均不明显

    3⊥3与3┬3舌轴嵴形态的区别是() A: 舌轴嵴3┬3与3┬3同样明显 B: 舌轴嵴3┬3不如3⊥3明显 C: 舌轴嵴3┬3比3⊥3明显 D: 舌轴嵴3┬3与3⊥3均不明显

  • 2022-06-04 问题

    总体分布正态,总体方差[tex=0.929x1.214]cCzS/cTqVNRb3hzF7/9UBw==[/tex]未知时,从总体中随机抽取容量为25的小样本,用样本平均数估计总体平均数的置信区间为( )。 未知类型:{'options': ['[tex=15.5x2.429]CfKfni7Og+l9H33unWjOg/W7EsVlXL+/UdQmmOCOhUL/iL8a8zLl1yVQwvSH7NrgHLAg9mZcUU9ValqYlZyK59k/y0uiDtjGAP6vut1JZYUNuQZiRTputOus4p+af5El2nnW51sE0DNkVqQJzr5Ys45JMoF/syOOn8hq0rCVsCw=[/tex]', '[tex=16.357x2.429]gmYNopPQf//B5C/LUiNhixkp7aI/mOXaGTLUgsr3/qZQM+ExCJuJQnwgfO4+exW5ep8U3z47abv3Xn63U4TQjJTo7Axp1YrViqVhQryJhnZAY7cQ8LJm8qdmHDRayhHlabyixnlZw6Fox1lcViU6u9ZsESjbMRaXC3+2H+rfpt0=[/tex]', '[tex=18.429x2.429]2+pCUIExc0GQVU7c4jNZ2hqI7NIxleXjsrz/fBbgCCtN8Wc0ZIKdZpY4jnfvoRh58eq7RajEWQQmGGYXBYD1hF1oUfPURSO7EHJ1/Y5s/qDHar0lJ3kyIvZ7B5bbTH2Qd1Gomn5Gst07sfaG7jKOTEWpRblaZujHOMANV37qRrg=[/tex]', '[tex=18.071x2.429]VPW/4IeKeI99DQcQ0Td0tcpjJE6szlcpdi5bdT4XjHpakRBawU3tVfFFsXUG8YvM1EP9L/rF4nZX1VqqhvnZFyHox0Txvr/ykx+oj0jiWP7p3EweoZ7lvskwMPs6bsO6LD4LynTfD7JPZyPjR0m8EEeuPBo1MMED7ynCuVScJU0=[/tex]'], 'type': 102}

    总体分布正态,总体方差[tex=0.929x1.214]cCzS/cTqVNRb3hzF7/9UBw==[/tex]未知时,从总体中随机抽取容量为25的小样本,用样本平均数估计总体平均数的置信区间为( )。 未知类型:{'options': ['[tex=15.5x2.429]CfKfni7Og+l9H33unWjOg/W7EsVlXL+/UdQmmOCOhUL/iL8a8zLl1yVQwvSH7NrgHLAg9mZcUU9ValqYlZyK59k/y0uiDtjGAP6vut1JZYUNuQZiRTputOus4p+af5El2nnW51sE0DNkVqQJzr5Ys45JMoF/syOOn8hq0rCVsCw=[/tex]', '[tex=16.357x2.429]gmYNopPQf//B5C/LUiNhixkp7aI/mOXaGTLUgsr3/qZQM+ExCJuJQnwgfO4+exW5ep8U3z47abv3Xn63U4TQjJTo7Axp1YrViqVhQryJhnZAY7cQ8LJm8qdmHDRayhHlabyixnlZw6Fox1lcViU6u9ZsESjbMRaXC3+2H+rfpt0=[/tex]', '[tex=18.429x2.429]2+pCUIExc0GQVU7c4jNZ2hqI7NIxleXjsrz/fBbgCCtN8Wc0ZIKdZpY4jnfvoRh58eq7RajEWQQmGGYXBYD1hF1oUfPURSO7EHJ1/Y5s/qDHar0lJ3kyIvZ7B5bbTH2Qd1Gomn5Gst07sfaG7jKOTEWpRblaZujHOMANV37qRrg=[/tex]', '[tex=18.071x2.429]VPW/4IeKeI99DQcQ0Td0tcpjJE6szlcpdi5bdT4XjHpakRBawU3tVfFFsXUG8YvM1EP9L/rF4nZX1VqqhvnZFyHox0Txvr/ykx+oj0jiWP7p3EweoZ7lvskwMPs6bsO6LD4LynTfD7JPZyPjR0m8EEeuPBo1MMED7ynCuVScJU0=[/tex]'], 'type': 102}

  • 2022-06-26 问题

    总体分布正态,总体方差[tex=0.929x1.214]cCzS/cTqVNRb3hzF7/9UBw==[/tex]未知时,从总体中随机抽取容量为25的小样本,用样本平均数估计总体平均数的置信区间为( )。 未知类型:{'options': ['[tex=15.5x2.429]CfKfni7Og+l9H33unWjOg/W7EsVlXL+/UdQmmOCOhUL/iL8a8zLl1yVQwvSH7NrgHLAg9mZcUU9ValqYlZyK59k/y0uiDtjGAP6vut1JZYUNuQZiRTputOus4p+af5El2nnW51sE0DNkVqQJzr5Ys45JMoF/syOOn8hq0rCVsCw=[/tex]', '[tex=16.357x2.429]gmYNopPQf//B5C/LUiNhixkp7aI/mOXaGTLUgsr3/qZQM+ExCJuJQnwgfO4+exW5ep8U3z47abv3Xn63U4TQjJTo7Axp1YrViqVhQryJhnZAY7cQ8LJm8qdmHDRayhHlabyixnlZw6Fox1lcViU6u9ZsESjbMRaXC3+2H+rfpt0=[/tex]', '[tex=18.429x2.429]2+pCUIExc0GQVU7c4jNZ2hqI7NIxleXjsrz/fBbgCCtN8Wc0ZIKdZpY4jnfvoRh58eq7RajEWQQmGGYXBYD1hF1oUfPURSO7EHJ1/Y5s/qDHar0lJ3kyIvZ7B5bbTH2Qd1Gomn5Gst07sfaG7jKOTEWpRblaZujHOMANV37qRrg=[/tex]', '[tex=18.071x2.429]VPW/4IeKeI99DQcQ0Td0tcpjJE6szlcpdi5bdT4XjHpakRBawU3tVfFFsXUG8YvM1EP9L/rF4nZX1VqqhvnZFyHox0Txvr/ykx+oj0jiWP7p3EweoZ7lvskwMPs6bsO6LD4LynTfD7JPZyPjR0m8EEeuPBo1MMED7ynCuVScJU0=[/tex]'], 'type': 102}

    总体分布正态,总体方差[tex=0.929x1.214]cCzS/cTqVNRb3hzF7/9UBw==[/tex]未知时,从总体中随机抽取容量为25的小样本,用样本平均数估计总体平均数的置信区间为( )。 未知类型:{'options': ['[tex=15.5x2.429]CfKfni7Og+l9H33unWjOg/W7EsVlXL+/UdQmmOCOhUL/iL8a8zLl1yVQwvSH7NrgHLAg9mZcUU9ValqYlZyK59k/y0uiDtjGAP6vut1JZYUNuQZiRTputOus4p+af5El2nnW51sE0DNkVqQJzr5Ys45JMoF/syOOn8hq0rCVsCw=[/tex]', '[tex=16.357x2.429]gmYNopPQf//B5C/LUiNhixkp7aI/mOXaGTLUgsr3/qZQM+ExCJuJQnwgfO4+exW5ep8U3z47abv3Xn63U4TQjJTo7Axp1YrViqVhQryJhnZAY7cQ8LJm8qdmHDRayhHlabyixnlZw6Fox1lcViU6u9ZsESjbMRaXC3+2H+rfpt0=[/tex]', '[tex=18.429x2.429]2+pCUIExc0GQVU7c4jNZ2hqI7NIxleXjsrz/fBbgCCtN8Wc0ZIKdZpY4jnfvoRh58eq7RajEWQQmGGYXBYD1hF1oUfPURSO7EHJ1/Y5s/qDHar0lJ3kyIvZ7B5bbTH2Qd1Gomn5Gst07sfaG7jKOTEWpRblaZujHOMANV37qRrg=[/tex]', '[tex=18.071x2.429]VPW/4IeKeI99DQcQ0Td0tcpjJE6szlcpdi5bdT4XjHpakRBawU3tVfFFsXUG8YvM1EP9L/rF4nZX1VqqhvnZFyHox0Txvr/ykx+oj0jiWP7p3EweoZ7lvskwMPs6bsO6LD4LynTfD7JPZyPjR0m8EEeuPBo1MMED7ynCuVScJU0=[/tex]'], 'type': 102}

  • 2022-10-28 问题

    总体分布正态,总体方差[tex=0.929x1.214]cCzS/cTqVNRb3hzF7/9UBw==[/tex]未知时,从总体中随机抽取容量为25的小样本,用样本平均数估计总体平均数的置信区间为( )。 未知类型:{'options': ['[tex=15.5x2.429]CfKfni7Og+l9H33unWjOg/W7EsVlXL+/UdQmmOCOhUL/iL8a8zLl1yVQwvSH7NrgHLAg9mZcUU9ValqYlZyK59k/y0uiDtjGAP6vut1JZYUNuQZiRTputOus4p+af5El2nnW51sE0DNkVqQJzr5Ys45JMoF/syOOn8hq0rCVsCw=[/tex]', '[tex=16.357x2.429]gmYNopPQf//B5C/LUiNhixkp7aI/mOXaGTLUgsr3/qZQM+ExCJuJQnwgfO4+exW5ep8U3z47abv3Xn63U4TQjJTo7Axp1YrViqVhQryJhnZAY7cQ8LJm8qdmHDRayhHlabyixnlZw6Fox1lcViU6u9ZsESjbMRaXC3+2H+rfpt0=[/tex]', '[tex=18.429x2.429]2+pCUIExc0GQVU7c4jNZ2hqI7NIxleXjsrz/fBbgCCtN8Wc0ZIKdZpY4jnfvoRh58eq7RajEWQQmGGYXBYD1hF1oUfPURSO7EHJ1/Y5s/qDHar0lJ3kyIvZ7B5bbTH2Qd1Gomn5Gst07sfaG7jKOTEWpRblaZujHOMANV37qRrg=[/tex]', '[tex=18.071x2.429]VPW/4IeKeI99DQcQ0Td0tcpjJE6szlcpdi5bdT4XjHpakRBawU3tVfFFsXUG8YvM1EP9L/rF4nZX1VqqhvnZFyHox0Txvr/ykx+oj0jiWP7p3EweoZ7lvskwMPs6bsO6LD4LynTfD7JPZyPjR0m8EEeuPBo1MMED7ynCuVScJU0=[/tex]'], 'type': 102}

    总体分布正态,总体方差[tex=0.929x1.214]cCzS/cTqVNRb3hzF7/9UBw==[/tex]未知时,从总体中随机抽取容量为25的小样本,用样本平均数估计总体平均数的置信区间为( )。 未知类型:{'options': ['[tex=15.5x2.429]CfKfni7Og+l9H33unWjOg/W7EsVlXL+/UdQmmOCOhUL/iL8a8zLl1yVQwvSH7NrgHLAg9mZcUU9ValqYlZyK59k/y0uiDtjGAP6vut1JZYUNuQZiRTputOus4p+af5El2nnW51sE0DNkVqQJzr5Ys45JMoF/syOOn8hq0rCVsCw=[/tex]', '[tex=16.357x2.429]gmYNopPQf//B5C/LUiNhixkp7aI/mOXaGTLUgsr3/qZQM+ExCJuJQnwgfO4+exW5ep8U3z47abv3Xn63U4TQjJTo7Axp1YrViqVhQryJhnZAY7cQ8LJm8qdmHDRayhHlabyixnlZw6Fox1lcViU6u9ZsESjbMRaXC3+2H+rfpt0=[/tex]', '[tex=18.429x2.429]2+pCUIExc0GQVU7c4jNZ2hqI7NIxleXjsrz/fBbgCCtN8Wc0ZIKdZpY4jnfvoRh58eq7RajEWQQmGGYXBYD1hF1oUfPURSO7EHJ1/Y5s/qDHar0lJ3kyIvZ7B5bbTH2Qd1Gomn5Gst07sfaG7jKOTEWpRblaZujHOMANV37qRrg=[/tex]', '[tex=18.071x2.429]VPW/4IeKeI99DQcQ0Td0tcpjJE6szlcpdi5bdT4XjHpakRBawU3tVfFFsXUG8YvM1EP9L/rF4nZX1VqqhvnZFyHox0Txvr/ykx+oj0jiWP7p3EweoZ7lvskwMPs6bsO6LD4LynTfD7JPZyPjR0m8EEeuPBo1MMED7ynCuVScJU0=[/tex]'], 'type': 102}

  • 2022-10-30 问题

    总体分布正态,总体方差[tex=0.929x1.214]cCzS/cTqVNRb3hzF7/9UBw==[/tex]未知时,从总体中随机抽取容量为25的小样本,用样本平均数估计总体平均数的置信区间为( )。 未知类型:{'options': ['[tex=15.5x2.429]CfKfni7Og+l9H33unWjOg/W7EsVlXL+/UdQmmOCOhUL/iL8a8zLl1yVQwvSH7NrgHLAg9mZcUU9ValqYlZyK59k/y0uiDtjGAP6vut1JZYUNuQZiRTputOus4p+af5El2nnW51sE0DNkVqQJzr5Ys45JMoF/syOOn8hq0rCVsCw=[/tex]', '[tex=16.357x2.429]gmYNopPQf//B5C/LUiNhixkp7aI/mOXaGTLUgsr3/qZQM+ExCJuJQnwgfO4+exW5ep8U3z47abv3Xn63U4TQjJTo7Axp1YrViqVhQryJhnZAY7cQ8LJm8qdmHDRayhHlabyixnlZw6Fox1lcViU6u9ZsESjbMRaXC3+2H+rfpt0=[/tex]', '[tex=18.429x2.429]2+pCUIExc0GQVU7c4jNZ2hqI7NIxleXjsrz/fBbgCCtN8Wc0ZIKdZpY4jnfvoRh58eq7RajEWQQmGGYXBYD1hF1oUfPURSO7EHJ1/Y5s/qDHar0lJ3kyIvZ7B5bbTH2Qd1Gomn5Gst07sfaG7jKOTEWpRblaZujHOMANV37qRrg=[/tex]', '[tex=18.071x2.429]VPW/4IeKeI99DQcQ0Td0tcpjJE6szlcpdi5bdT4XjHpakRBawU3tVfFFsXUG8YvM1EP9L/rF4nZX1VqqhvnZFyHox0Txvr/ykx+oj0jiWP7p3EweoZ7lvskwMPs6bsO6LD4LynTfD7JPZyPjR0m8EEeuPBo1MMED7ynCuVScJU0=[/tex]'], 'type': 102}

    总体分布正态,总体方差[tex=0.929x1.214]cCzS/cTqVNRb3hzF7/9UBw==[/tex]未知时,从总体中随机抽取容量为25的小样本,用样本平均数估计总体平均数的置信区间为( )。 未知类型:{'options': ['[tex=15.5x2.429]CfKfni7Og+l9H33unWjOg/W7EsVlXL+/UdQmmOCOhUL/iL8a8zLl1yVQwvSH7NrgHLAg9mZcUU9ValqYlZyK59k/y0uiDtjGAP6vut1JZYUNuQZiRTputOus4p+af5El2nnW51sE0DNkVqQJzr5Ys45JMoF/syOOn8hq0rCVsCw=[/tex]', '[tex=16.357x2.429]gmYNopPQf//B5C/LUiNhixkp7aI/mOXaGTLUgsr3/qZQM+ExCJuJQnwgfO4+exW5ep8U3z47abv3Xn63U4TQjJTo7Axp1YrViqVhQryJhnZAY7cQ8LJm8qdmHDRayhHlabyixnlZw6Fox1lcViU6u9ZsESjbMRaXC3+2H+rfpt0=[/tex]', '[tex=18.429x2.429]2+pCUIExc0GQVU7c4jNZ2hqI7NIxleXjsrz/fBbgCCtN8Wc0ZIKdZpY4jnfvoRh58eq7RajEWQQmGGYXBYD1hF1oUfPURSO7EHJ1/Y5s/qDHar0lJ3kyIvZ7B5bbTH2Qd1Gomn5Gst07sfaG7jKOTEWpRblaZujHOMANV37qRrg=[/tex]', '[tex=18.071x2.429]VPW/4IeKeI99DQcQ0Td0tcpjJE6szlcpdi5bdT4XjHpakRBawU3tVfFFsXUG8YvM1EP9L/rF4nZX1VqqhvnZFyHox0Txvr/ykx+oj0jiWP7p3EweoZ7lvskwMPs6bsO6LD4LynTfD7JPZyPjR0m8EEeuPBo1MMED7ynCuVScJU0=[/tex]'], 'type': 102}

  • 2021-04-14 问题

    ????3???3?3????????????

    ????3???3?3????????????

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