• 2022-06-03 问题

    执行下列代码<img src="data:image/png;base64,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" />后,Y的值是? ( ) A: 9 B: 一维数组{-21, -18, -15, -12, -9, -6, -3, 0, 3, 6, 9} C: 一维数组{-21, -18, -15, -12, -9, -6, -3, 0, 3, 6} D: 6

    执行下列代码<img src="data:image/png;base64,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" />后,Y的值是? ( ) A: 9 B: 一维数组{-21, -18, -15, -12, -9, -6, -3, 0, 3, 6, 9} C: 一维数组{-21, -18, -15, -12, -9, -6, -3, 0, 3, 6} D: 6

  • 2022-06-30 问题

    图示桁架,各杆EA为常数,除支座链杆外,零杆的个数为( )。 A: 6 B: 7 C: 8 D: 9

    图示桁架,各杆EA为常数,除支座链杆外,零杆的个数为( )。 A: 6 B: 7 C: 8 D: 9

  • 2021-04-14 问题

    设A={x, y, z},则全关系的∣EA∣=∣A×A∣=9。

    设A={x, y, z},则全关系的∣EA∣=∣A×A∣=9。

  • 2021-04-14 问题

    设A={x,y,z},则全关系的∣EA∣=∣A×A∣=9。

    设A={x,y,z},则全关系的∣EA∣=∣A×A∣=9。

  • 2022-06-06 问题

    Given generating function $G(x)=\frac{3+78x}{1-3x-54x^2}$, find the corresponding sequence $\{a_n\}$ A: $\{a_n\}=7*(-9)^n+4*6^n$ B: $\{a_n\}=7*9^n-4*6^n$ C: $\{a_n\}=7*9^n-4*(-6)^n$ D: $\{a_n\}=7*(-9)^n-4*6^n$ E: $\{a_n\}=7*(-9)^n+4*(-6)^n$ F: $\{a_n\}=7*(-9)^n-4*(-6)^n$

    Given generating function $G(x)=\frac{3+78x}{1-3x-54x^2}$, find the corresponding sequence $\{a_n\}$ A: $\{a_n\}=7*(-9)^n+4*6^n$ B: $\{a_n\}=7*9^n-4*6^n$ C: $\{a_n\}=7*9^n-4*(-6)^n$ D: $\{a_n\}=7*(-9)^n-4*6^n$ E: $\{a_n\}=7*(-9)^n+4*(-6)^n$ F: $\{a_n\}=7*(-9)^n-4*(-6)^n$

  • 2021-04-14 问题

    一平行板电容器始终与电压一定的电源相联。当电容器两极板间为真空时,电场强度为0,...9ea2b0d322a440ea.PNG

    一平行板电容器始终与电压一定的电源相联。当电容器两极板间为真空时,电场强度为0,...9ea2b0d322a440ea.PNG

  • 2022-05-29 问题

    5.下列文件扩展名中,表示图片文件的有( )个.(1)PNG(2)MID(3)GIF(4) A: V (5)MOV (6)MP4(7)WMF(8)RMVB(9)TGA(10)AU(11)EXE(12)TMP B: 4 C: 3 D: 5 E: 6

    5.下列文件扩展名中,表示图片文件的有( )个.(1)PNG(2)MID(3)GIF(4) A: V (5)MOV (6)MP4(7)WMF(8)RMVB(9)TGA(10)AU(11)EXE(12)TMP B: 4 C: 3 D: 5 E: 6

  • 2022-05-27 问题

    以下不属于条件求值的是()。 A: ${3>=8?true:false} B: ${6<9?true:false} C: ${6<9?6:9} D: ${6<9}

    以下不属于条件求值的是()。 A: ${3>=8?true:false} B: ${6<9?true:false} C: ${6<9?6:9} D: ${6<9}

  • 2022-10-25 问题

    已知豌豆的高茎(D)对矮茎(d)为显性,在杂交试验中,后代有50%的矮茎,则其亲本的基因型是 A: DD×dd B: DD×Dd C: Dd×Dd D: Dd×dd E: dd×dd

    已知豌豆的高茎(D)对矮茎(d)为显性,在杂交试验中,后代有50%的矮茎,则其亲本的基因型是 A: DD×dd B: DD×Dd C: Dd×Dd D: Dd×dd E: dd×dd

  • 2022-06-16 问题

    该病人的烧伤总面积估计是()。 A: 7×9% B: 6×9% C: 5×9% D: 4×9% E: 3×9%

    该病人的烧伤总面积估计是()。 A: 7×9% B: 6×9% C: 5×9% D: 4×9% E: 3×9%

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