x=2,y=5,z=3 (x>y)+z*4=?
x=2,y=5,z=3 (x>y)+z*4=?
设x=2以及y=3,下面代码的输出结果是。if (x >; 2)if(y >; 2){int z = x + y;System.out.println("z is " + z) ;}else{System.out.println("x is " + x) ;} A: x is 2 B: z is 5 C: x is 5 D: 无输出
设x=2以及y=3,下面代码的输出结果是。if (x >; 2)if(y >; 2){int z = x + y;System.out.println("z is " + z) ;}else{System.out.println("x is " + x) ;} A: x is 2 B: z is 5 C: x is 5 D: 无输出
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}
图示的力分别在x、y、z三轴上的投影为() A: X=2√2P/5,Y=3√2P/10,Z=√2P/2 B: X=2√2P/5,Y=-3√2P/10,Z=-√2P/2 C: X=-2√2P/5,Y=3√2P/10,Z=√2P/2 D: X=-2√2P/5,Y=-3√2P/10,Z=√2P/2
图示的力分别在x、y、z三轴上的投影为() A: X=2√2P/5,Y=3√2P/10,Z=√2P/2 B: X=2√2P/5,Y=-3√2P/10,Z=-√2P/2 C: X=-2√2P/5,Y=3√2P/10,Z=√2P/2 D: X=-2√2P/5,Y=-3√2P/10,Z=√2P/2
下列程序运行时,能运行语句2的 x, y, z 的条件时,分别赋值为: Dim x ,y , z As Integer x = ____ y = ____ z = ____ If x > 2 And y < 5 Or z =5 Then 语句1 Else 语句2 End If
下列程序运行时,能运行语句2的 x, y, z 的条件时,分别赋值为: Dim x ,y , z As Integer x = ____ y = ____ z = ____ If x > 2 And y < 5 Or z =5 Then 语句1 Else 语句2 End If
函数 [img=197x96]1803dbfc46ca27a.png[/img]表示的曲面称为椭圆锥面,绘制这个曲面的程序是: A: s=-5:0.1:5;t=-5:0.1:5;[x, y]=meshgrid(s, t);z=sqrt(x.^2+y.^2);mesh(x,y,z) B: a=3;b=2;s=-5:0.1:5;t=-5:0.1:5;[x, y]=meshgrid(s, t);z=sqrt(x.^2/a/a+y.^2/b/b);mesh(x, y, z) C: a=3;b=2;s=-5:0.1:5;t=-5:0.1:5;[x, y]=meshgrid(s, t);z=sqrt(x.^2/a*a+y.^2/b*b);mesh(x, y, z) D: a=3;b=2;s=-5:0.1:5;t=-5:0.1:5;[x, y]=meshgrid(s, t);z=sqrt(x^2/a/a+y^2/b/b);mesh(x, y, z);
函数 [img=197x96]1803dbfc46ca27a.png[/img]表示的曲面称为椭圆锥面,绘制这个曲面的程序是: A: s=-5:0.1:5;t=-5:0.1:5;[x, y]=meshgrid(s, t);z=sqrt(x.^2+y.^2);mesh(x,y,z) B: a=3;b=2;s=-5:0.1:5;t=-5:0.1:5;[x, y]=meshgrid(s, t);z=sqrt(x.^2/a/a+y.^2/b/b);mesh(x, y, z) C: a=3;b=2;s=-5:0.1:5;t=-5:0.1:5;[x, y]=meshgrid(s, t);z=sqrt(x.^2/a*a+y.^2/b*b);mesh(x, y, z) D: a=3;b=2;s=-5:0.1:5;t=-5:0.1:5;[x, y]=meshgrid(s, t);z=sqrt(x^2/a/a+y^2/b/b);mesh(x, y, z);
假设x=5,y=8,则分别执行下列语句后z的值为多少? (1)z=x/y (2)z=x%y (3)z=x+(++y) (4)z=x+(y++) (5)z=x&y (6)z=x|y (7)z=x<<316 (8)z=x>y?x:y
假设x=5,y=8,则分别执行下列语句后z的值为多少? (1)z=x/y (2)z=x%y (3)z=x+(++y) (4)z=x+(y++) (5)z=x&y (6)z=x|y (7)z=x<<316 (8)z=x>y?x:y
图示的力分别在x、y、z三轴上的投影为( )。[img=277x232]1786983f925fb81.png[/img] A: X=2Ö2P/5, Y=3Ö2P/10, Z=Ö2P/2 B: X=2Ö2P/5, Y= - 3Ö2P/10, Z= - Ö2P/2 C: X= - 2Ö2P/5, Y=3Ö2P/10, Z=Ö2P/2 D: X= - 2Ö2P/5, Y= - 3Ö2P/10, Z=Ö2P/2
图示的力分别在x、y、z三轴上的投影为( )。[img=277x232]1786983f925fb81.png[/img] A: X=2Ö2P/5, Y=3Ö2P/10, Z=Ö2P/2 B: X=2Ö2P/5, Y= - 3Ö2P/10, Z= - Ö2P/2 C: X= - 2Ö2P/5, Y=3Ö2P/10, Z=Ö2P/2 D: X= - 2Ö2P/5, Y= - 3Ö2P/10, Z=Ö2P/2
图示的力分别在x、y、z三轴上的投影为( )[img=260x229]1786983fb13c0a2.png[/img] A: X= - 3Ö2P/10, Y= 2Ö2P/5, Z= - Ö2P/2 B: X= - 2Ö2P/5, Y= 3Ö2P/10, Z= - Ö2P/2 C: X= 3Ö2P/10, Y= - 2Ö2P/5, Z= - Ö2P/2 D: X= 2Ö2P/5, Y= 3Ö2P/10, Z= - Ö2P/2
图示的力分别在x、y、z三轴上的投影为( )[img=260x229]1786983fb13c0a2.png[/img] A: X= - 3Ö2P/10, Y= 2Ö2P/5, Z= - Ö2P/2 B: X= - 2Ö2P/5, Y= 3Ö2P/10, Z= - Ö2P/2 C: X= 3Ö2P/10, Y= - 2Ö2P/5, Z= - Ö2P/2 D: X= 2Ö2P/5, Y= 3Ö2P/10, Z= - Ö2P/2
已有定义语句:int x=6,y=4,z=5;,执行以下语句后,能正确表示x,y,z值的选项是( )。if(x<;y) z=x;x=y;y=z; A: x=4,y=5,z=6 B: x=6,y=4,z=5 C: x=4,y=5,z=5 D: x=5,y=6,z=4
已有定义语句:int x=6,y=4,z=5;,执行以下语句后,能正确表示x,y,z值的选项是( )。if(x<;y) z=x;x=y;y=z; A: x=4,y=5,z=6 B: x=6,y=4,z=5 C: x=4,y=5,z=5 D: x=5,y=6,z=4