• 2021-04-14 问题

    已知()x()(()n())()的()z()变换是()X()(()z())(),()ROC()是()|()z()|()>()a(),则()x(()-()n()-()5())()的()z()变换和()ROC()是()()A.()()z()-()5()X()(1/()z()),z()>()1/()a()B.()()z()5()X()(1/()z()),z()>()1/()a()C.()()z()-()5()X()(1/()z()),z()<()1/()a()D.()()z()5()X()(1/()z()),z()<()1/()a

    已知()x()(()n())()的()z()变换是()X()(()z())(),()ROC()是()|()z()|()>()a(),则()x(()-()n()-()5())()的()z()变换和()ROC()是()()A.()()z()-()5()X()(1/()z()),z()>()1/()a()B.()()z()5()X()(1/()z()),z()>()1/()a()C.()()z()-()5()X()(1/()z()),z()<()1/()a()D.()()z()5()X()(1/()z()),z()<()1/()a

  • 2022-06-12 问题

    intx=5,y=8,z=7;表达式z=!(x>y)||(x=1,y=3)计算后的结果 A: x=1,y=3,z=1 B: x=1,y=3,z=0 C: x=5,y=8,z=0 D: x=5,y=8,z=1

    intx=5,y=8,z=7;表达式z=!(x>y)||(x=1,y=3)计算后的结果 A: x=1,y=3,z=1 B: x=1,y=3,z=0 C: x=5,y=8,z=0 D: x=5,y=8,z=1

  • 2022-06-15 问题

    若有int x,y,z;,则执行以下程序段后的输出结果为:x=1;y=3;z=5;if(x>;y)x=y;y=z;printf("x=%d,y=%d,z=%d",x,y,z); A: x=1,y=5,z=5 B: x=1,y=3,z=3 C: x=5,y=3,z=5 D: x=5,y=3,z=3

    若有int x,y,z;,则执行以下程序段后的输出结果为:x=1;y=3;z=5;if(x>;y)x=y;y=z;printf("x=%d,y=%d,z=%d",x,y,z); A: x=1,y=5,z=5 B: x=1,y=3,z=3 C: x=5,y=3,z=5 D: x=5,y=3,z=3

  • 2022-07-25 问题

    将正数12分成三个正数\(x\),\(y\),\(z\)之和,使得\(u=x^3y^2z\)为最大,则\(x\),\(y\),\(z\)分别为 A: \(x=6,y=1,z=5\) B: \(x=6,y=4,z=2\) C: \(x=6,y=3,z=3\) D: \(x=4,y=3,z=5\)

    将正数12分成三个正数\(x\),\(y\),\(z\)之和,使得\(u=x^3y^2z\)为最大,则\(x\),\(y\),\(z\)分别为 A: \(x=6,y=1,z=5\) B: \(x=6,y=4,z=2\) C: \(x=6,y=3,z=3\) D: \(x=4,y=3,z=5\)

  • 2022-06-30 问题

    已知向量a=(x,2,-10),b=(3,1,z)平行,则坐标x,z分别为( ). A: x=2,z=1 B: x=1,z=2 C: x=6,z=-5 D: x=-6,z=5

    已知向量a=(x,2,-10),b=(3,1,z)平行,则坐标x,z分别为( ). A: x=2,z=1 B: x=1,z=2 C: x=6,z=-5 D: x=-6,z=5

  • 2022-06-08 问题

    执行以下语句的结果:dict1={"x":1,"y":2,"z":3}dict2={"x":4,"a":5}dict1.update(dict2) A: {"x":1,"y":2,"z":3,"x":4,"a":5} B: {"x":4,"a":5,"x":1,"y":2,"z":3} C: 有重复项,结果有误! D: {"x":4,"y":2,"z":3,"a":5}

    执行以下语句的结果:dict1={"x":1,"y":2,"z":3}dict2={"x":4,"a":5}dict1.update(dict2) A: {"x":1,"y":2,"z":3,"x":4,"a":5} B: {"x":4,"a":5,"x":1,"y":2,"z":3} C: 有重复项,结果有误! D: {"x":4,"y":2,"z":3,"a":5}

  • 2021-04-14 问题

    以下程序段的输出结构是()int x,y,z;x=12,y=5;z=x>y?x++:y--;printf(“%d”,z);

    以下程序段的输出结构是()int x,y,z;x=12,y=5;z=x>y?x++:y--;printf(“%d”,z);

  • 2022-05-30 问题

    下面函数定义并调用后,能产生正确结果的是?def f(x,y=5,z=3): pass A: f(5,x=1,z=3) B: f(x=1,y=5,z=6) C: f(1,,z=3) D: f(x=1,2)

    下面函数定义并调用后,能产生正确结果的是?def f(x,y=5,z=3): pass A: f(5,x=1,z=3) B: f(x=1,y=5,z=6) C: f(1,,z=3) D: f(x=1,2)

  • 2021-04-14 问题

    int x = 3 , y = 4 , z = 5 则表达式!( x y ) z – 1

    int x = 3 , y = 4 , z = 5 则表达式!( x y ) z – 1

  • 2022-06-12 问题

    设有下列语句序列:(x>;1)and(y<;=5)thenz←x*y;sez←x+y;z=12thenz←2*z。用判定条件覆盖法进行测试,则应选用()为测试用例。 A: x=1,y=12;x=4,y=7 B: x=2,y=1;x=3,y=3 C: x=3,y=4;x=1,y=9 D: x=4,y=5;x=1,y=6

    设有下列语句序列:(x>;1)and(y<;=5)thenz←x*y;sez←x+y;z=12thenz←2*z。用判定条件覆盖法进行测试,则应选用()为测试用例。 A: x=1,y=12;x=4,y=7 B: x=2,y=1;x=3,y=3 C: x=3,y=4;x=1,y=9 D: x=4,y=5;x=1,y=6

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