• 2022-07-01 问题

    远红外的波段() A: 0.75 μ m ~ 3 μ m B: 3 μ m ~ 6 μ m C: 6 μ m ~ 15 μ m D: 15 μ m ~ 1000 μ m

    远红外的波段() A: 0.75 μ m ~ 3 μ m B: 3 μ m ~ 6 μ m C: 6 μ m ~ 15 μ m D: 15 μ m ~ 1000 μ m

  • 2022-05-31 问题

    The average unit weight of the backfill below the ground and above foundation and its steps is usually taken as( ) A: 10 kN/m^3 B: 15 kN/m^3 C: 20 kN/m^3 D: 25 kN/m^3

    The average unit weight of the backfill below the ground and above foundation and its steps is usually taken as( ) A: 10 kN/m^3 B: 15 kN/m^3 C: 20 kN/m^3 D: 25 kN/m^3

  • 2022-06-29 问题

    已知3 阶矩阵[img=17x18]17e0bb9e6b0aa46.png[/img]的特征值为1,2,-3,求[img=93x29]17e0bb9e75d5775.png[/img]=() A: 6 B: -6 C: 25 D: -25

    已知3 阶矩阵[img=17x18]17e0bb9e6b0aa46.png[/img]的特征值为1,2,-3,求[img=93x29]17e0bb9e75d5775.png[/img]=() A: 6 B: -6 C: 25 D: -25

  • 2022-06-28 问题

    地面以下基础及其台阶上回填土的平均重度通常取值为() A: 20 kN/m^3 B: 10 kN/m^3 C: 15 kN/m^3 D: 25 kN/m^3

    地面以下基础及其台阶上回填土的平均重度通常取值为() A: 20 kN/m^3 B: 10 kN/m^3 C: 15 kN/m^3 D: 25 kN/m^3

  • 2022-05-31 问题

    已知3阶矩阵A的特征值为1, 2, -3, 则|A*+3A+2E|=( ) A: -6 B: 1 C: -25 D: 25

    已知3阶矩阵A的特征值为1, 2, -3, 则|A*+3A+2E|=( ) A: -6 B: 1 C: -25 D: 25

  • 2022-06-04 问题

    ‌执行下列程序段后,i和m的值为( )。‎‌m = 0‎‌For i = 1 To 3‎‌ For j = 1 To i‎‌ m = m + j‎‌Next j, i‎‌‎ A: 3 6 B: 3 10 C: 4 6 D: 4 10

    ‌执行下列程序段后,i和m的值为( )。‎‌m = 0‎‌For i = 1 To 3‎‌ For j = 1 To i‎‌ m = m + j‎‌Next j, i‎‌‎ A: 3 6 B: 3 10 C: 4 6 D: 4 10

  • 2022-06-05 问题

    It is known that the magnetic strength is [img=302x29]1803b72d24f9f97.png[/img], then the value of m is ________. A: -3 B: 3 C: -6 D: 6

    It is known that the magnetic strength is [img=302x29]1803b72d24f9f97.png[/img], then the value of m is ________. A: -3 B: 3 C: -6 D: 6

  • 2022-06-15 问题

    执行如下VB代码后,变量i和m的值分别是( ): m% = 0 For i = 1 To 3 For j = 1 To i m = m + j Next j Next i A: 3 6 B: 3 10 C: 4 6 D: 4 10

    执行如下VB代码后,变量i和m的值分别是( ): m% = 0 For i = 1 To 3 For j = 1 To i m = m + j Next j Next i A: 3 6 B: 3 10 C: 4 6 D: 4 10

  • 2022-06-10 问题

    逻辑函数F=AB+BC的最小项表达式为 A: F=m<sub>3</sub>+m<sub>6</sub>+m<sub>7</sub> B: F=m<sub>2</sub>+m<sub>3</sub>+m<sub>6</sub> C: F=m<sub>2</sub>+m<sub>3</sub>+m<sub>7</sub> D: F=m<sub>3</sub>+m<sub>4</sub>+m<sub>7</sub>

    逻辑函数F=AB+BC的最小项表达式为 A: F=m<sub>3</sub>+m<sub>6</sub>+m<sub>7</sub> B: F=m<sub>2</sub>+m<sub>3</sub>+m<sub>6</sub> C: F=m<sub>2</sub>+m<sub>3</sub>+m<sub>7</sub> D: F=m<sub>3</sub>+m<sub>4</sub>+m<sub>7</sub>

  • 2022-06-26 问题

    已知向量a=(1,m),b=(3,-2),且(a+b)⊥b,则m=() A: -8 B: -6 C: 6 D: 8

    已知向量a=(1,m),b=(3,-2),且(a+b)⊥b,则m=() A: -8 B: -6 C: 6 D: 8

  • 1 2 3 4 5 6 7 8 9 10