• 2021-04-14 问题

    【单选题】rev(c(1,3,2,6,7,8,8,1,1,0))的运行结果 ? A. [1] 0 1 1 1 2 3 6 7 8 8 B. [1] 1 3 2 6 7 8 8 1 1 0 C. [1] 0 1 1 8 8 7 6 2 3 1 D. [1] 8 8 7 6 3 2 1 1 1 0

    【单选题】rev(c(1,3,2,6,7,8,8,1,1,0))的运行结果 ? A. [1] 0 1 1 1 2 3 6 7 8 8 B. [1] 1 3 2 6 7 8 8 1 1 0 C. [1] 0 1 1 8 8 7 6 2 3 1 D. [1] 8 8 7 6 3 2 1 1 1 0

  • 2022-06-05 问题

    执行下列代码段后,s的值为________。 int a&#91;&#93; = {5, 3, 7, 2, 1, 5, 3, 10}; int k, s = 0; for(k = 0; k < 8; k += 2) s += a&#91;k&#93;;

    执行下列代码段后,s的值为________。 int a&#91;&#93; = {5, 3, 7, 2, 1, 5, 3, 10}; int k, s = 0; for(k = 0; k < 8; k += 2) s += a&#91;k&#93;;

  • 2021-04-14 问题

    【单选题】请用地点定桩法在4分钟内记忆数字。 4 0 1 3 6 3 5 1 9 8 8 9 7 2 9 3 0 9 5 3 1 7 7 5 2 3 3 0 5 0 1 4 1 3 8 3 5 7 9 7 (5.0分) A. 已背 B. 未背

    【单选题】请用地点定桩法在4分钟内记忆数字。 4 0 1 3 6 3 5 1 9 8 8 9 7 2 9 3 0 9 5 3 1 7 7 5 2 3 3 0 5 0 1 4 1 3 8 3 5 7 9 7 (5.0分) A. 已背 B. 未背

  • 2022-05-29 问题

    描述一个正整数n能同时被3,5和7同时整除的正确表达式为 A: n//3==0 and n//5==0 and n//7==0 B: n//3==0 or n//5==0 or n//7==0 C: n%3==0 and n%5==0 and n%7==0 D: n%3==0 or n%5==0 or n%7==0

    描述一个正整数n能同时被3,5和7同时整除的正确表达式为 A: n//3==0 and n//5==0 and n//7==0 B: n//3==0 or n//5==0 or n//7==0 C: n%3==0 and n%5==0 and n%7==0 D: n%3==0 or n%5==0 or n%7==0

  • 2022-06-06 问题

    A = &#91;3 NaN 5 6 7 NaN NaN 9&#93;;TF = ismissing(A)则TF=( ) A: 0 1 0 0 0 1 1 0 B: 2 6 7 C: 1 3 4 5 8 D: 以上都不对

    A = &#91;3 NaN 5 6 7 NaN NaN 9&#93;;TF = ismissing(A)则TF=( ) A: 0 1 0 0 0 1 1 0 B: 2 6 7 C: 1 3 4 5 8 D: 以上都不对

  • 2022-06-06 问题

    以下程序的运行结果是()。main(){ int i,b,k=0; for(i=1;i;0) { b--;k++;}}printf(“k=%d,b=%d”,k,b);} A: k=8,b=-2 B: k=3,b=0 C: k=3,b=-1 D: k=8,b=-1

    以下程序的运行结果是()。main(){ int i,b,k=0; for(i=1;i;0) { b--;k++;}}printf(“k=%d,b=%d”,k,b);} A: k=8,b=-2 B: k=3,b=0 C: k=3,b=-1 D: k=8,b=-1

  • 2022-06-18 问题

    &gt;&gt;&gt;x= &#91;10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9&#93;&gt;&gt;&gt;print(x.sort()) 语句运行结果正确的是( )。 A: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] B: [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9] C: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0] D: ['2', '4', '0', '6', '10', '7', '8', '3', '9', '1', '5']

    &gt;&gt;&gt;x= &#91;10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9&#93;&gt;&gt;&gt;print(x.sort()) 语句运行结果正确的是( )。 A: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10] B: [10, 6, 0, 1, 7, 4, 3, 2, 8, 5, 9] C: [10, 9, 8, 7, 6, 5, 4, 3, 2, 1, 0] D: ['2', '4', '0', '6', '10', '7', '8', '3', '9', '1', '5']

  • 2022-06-10 问题

    定义数组char a&#91;&#93;=}'0','1','2','3');,则将该数组中元素按反序转换成整数,正确的程序段是______。 A: int k=0,i; for(i=0;i<4;i++) k=k*10+a-48; B: int k=0,i; for(i=3;i>=0;i--) k=k*10+a-'0'; C: int k=0,i; for(i=3;i>=0;i--) k=k+a-'0'; D: int k,i; for(i=3;i>=0;i--) k=k*10+a-'0';

    定义数组char a&#91;&#93;=}'0','1','2','3');,则将该数组中元素按反序转换成整数,正确的程序段是______。 A: int k=0,i; for(i=0;i<4;i++) k=k*10+a-48; B: int k=0,i; for(i=3;i>=0;i--) k=k*10+a-'0'; C: int k=0,i; for(i=3;i>=0;i--) k=k+a-'0'; D: int k,i; for(i=3;i>=0;i--) k=k*10+a-'0';

  • 2022-06-11 问题

    (多选)以下平面弹性体的位移或形变状态不可能存在的是 A: 位移分量$u = {k_1}\left( {{x^2} + {y^2}} \right),v = {k_2}xy$(${k_1},{k_2}$为常数) B: ${\varepsilon _x} = k\left( {{x^2} + {y^2}} \right),{\varepsilon _y} = k{y^2},{\gamma _{xy}} = 2kxy$(${k \ne 0}$) C: ${\varepsilon _x} = 0,{\varepsilon _y} = 0,{\gamma _{xy}} = kxy$(${k \ne 0}$) D: ${\varepsilon _x} = ax{y^2},{\varepsilon _y} = b{x^2}y,{\gamma _{xy}} = cxy$($a \ne 0,b \ne 0,c \ne 0$)

    (多选)以下平面弹性体的位移或形变状态不可能存在的是 A: 位移分量$u = {k_1}\left( {{x^2} + {y^2}} \right),v = {k_2}xy$(${k_1},{k_2}$为常数) B: ${\varepsilon _x} = k\left( {{x^2} + {y^2}} \right),{\varepsilon _y} = k{y^2},{\gamma _{xy}} = 2kxy$(${k \ne 0}$) C: ${\varepsilon _x} = 0,{\varepsilon _y} = 0,{\gamma _{xy}} = kxy$(${k \ne 0}$) D: ${\varepsilon _x} = ax{y^2},{\varepsilon _y} = b{x^2}y,{\gamma _{xy}} = cxy$($a \ne 0,b \ne 0,c \ne 0$)

  • 2021-04-14 问题

    【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]

    【单选题】Which of the following matrices does not have the same determinant of matrix B: [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -1, 0, -9,-5] A. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 0; -1, 0, -9, -5] B. [1, 3, 0, 2; -2, -5, 7, 4; 1, 0, 9, 5; -1, 0, -9, -5] C. [1, 3, 0, 2; -2, -5, 7, 4; 3, 5, 2, 1; -3, -5, -2, -1] D. [1, 3, 0, 2; -2, -5, 7, 4; 0, 0, 0, 1; -1, 0, -9, -5]

  • 1 2 3 4 5 6 7 8 9 10