• 2022-06-17 问题

    一个有效的工具变量应满足如下两个条件 A: corr(Zi, Xi) = 0 and corr(Zi, ui) ≠ 0 B: corr(Zi, Xi) = 0 and corr(Zi, ui) = 0. C: corr(Zi, Xi) ≠ 0 and corr(Zi, ui) = 0 D: corr(Zi, Xi) ≠ 0 and corr(Zi, ui) ≠ 0

    一个有效的工具变量应满足如下两个条件 A: corr(Zi, Xi) = 0 and corr(Zi, ui) ≠ 0 B: corr(Zi, Xi) = 0 and corr(Zi, ui) = 0. C: corr(Zi, Xi) ≠ 0 and corr(Zi, ui) = 0 D: corr(Zi, Xi) ≠ 0 and corr(Zi, ui) ≠ 0

  • 2022-07-01 问题

    已知某线性相位FIR滤波器的零点Zi,则下面哪些点仍是该滤波器的零点 A: Zi* B: 1/Zi* C: 1/Zi D: 0

    已知某线性相位FIR滤波器的零点Zi,则下面哪些点仍是该滤波器的零点 A: Zi* B: 1/Zi* C: 1/Zi D: 0

  • 2022-06-05 问题

    Who is the representative of Confucians?‎ A: Mencius B: Lao Zi C: Xun Zi D: Confucious

    Who is the representative of Confucians?‎ A: Mencius B: Lao Zi C: Xun Zi D: Confucious

  • 2022-06-06 问题

    Lao Zi was known as the Chinese Nietzsche.

    Lao Zi was known as the Chinese Nietzsche.

  • 2021-04-14 问题

    Zi means Ziwei Star and Ziwei Star is __________________________________.

    Zi means Ziwei Star and Ziwei Star is __________________________________.

  • 2022-05-27 问题

    ___ talks about Confucius like this: Confucius is a sage of being appropriate to the time; Confucius is a man of great attainments. A: Mencius B: Xun Zi C: Mo Zi

    ___ talks about Confucius like this: Confucius is a sage of being appropriate to the time; Confucius is a man of great attainments. A: Mencius B: Xun Zi C: Mo Zi

  • 2022-06-06 问题

    改进dh参数di参数含义为以下哪个选项? A: 沿着Zi轴,从Xi-1移动到Xi的距离 B: 沿着Xi-1轴,从Zi-1旋转到Zi的距离 C: 绕着Zi轴,从Xi-1旋转到Xi的角度 D: 绕着Xi-1轴,从Zi-1移动到Zi的角度

    改进dh参数di参数含义为以下哪个选项? A: 沿着Zi轴,从Xi-1移动到Xi的距离 B: 沿着Xi-1轴,从Zi-1旋转到Zi的距离 C: 绕着Zi轴,从Xi-1旋转到Xi的角度 D: 绕着Xi-1轴,从Zi-1移动到Zi的角度

  • 2022-06-12 问题

    下列代码执行结果为真的是 A: 1<2 > B: 2>2*1 || “5”==5 C: 2>2*1 && 5==5 D: 2>=2*1 && “5”===5

    下列代码执行结果为真的是 A: 1<2 > B: 2>2*1 || “5”==5 C: 2>2*1 && 5==5 D: 2>=2*1 && “5”===5

  • 2022-06-01 问题

    西班牙语中,不存在ze、zi这种拼写方式。

    西班牙语中,不存在ze、zi这种拼写方式。

  • 2022-06-06 问题

    Lao Zi and his Taoism were not worshiped in Tang Dynasty.

    Lao Zi and his Taoism were not worshiped in Tang Dynasty.

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