请阅读下面程序: main( ) { int s ,t,a,b; scanf(“%d,%d”,&a,&b); s=1; t=1; if(a>0) s=s+1; if(a>b) t=s+t; else if(a= =b) t=5; else t=2*s; printf(“s=%d,t=%d”,s,t); } 为使输出结果s=1,t=5,输入量a和b应满足条件是

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);

s=”hello”,t=”world”,s+=t,则s为________________,s[-1]为________,s[2:5]为_____________,s[::3]为____________,s[-2::-1]为____________________

以下程序的运行结果是s=2,t=3#include ;using namespace std;int main(){ int s=1,t=1,a=5,b=2; if (a>;0) s++; if (a>;b) t+=s; else if (a==b) t=5; else t=2*s; cout return 0;}

请阅读以下程序片段,a=-1,b=-1,t输出的结果是___________。 s=1; t=1; if(a>0)s=s+1; if(a>b)t=s+t; elseif(a==b)t=5; elset=2*s; printf(“%d”,t);

用名词性物主代词填空 1 Is it his empty bottle? Is it _________? 2 No, it’s my bottle. It’s _________ . 3 That’s their bin. That’s _________ . 4 That isn’t her bin. It isn’t _________ . 5 The men didn’t take our bin. They didn’t take _________ .

请阅读以下程序，为使输出时t值为4，输入量a和b应满足的条件是 。 main() {int s,t,a,b; scanf("%d,%d",&a,&b); s=1;t=1; if(a>0) s=s+1; if(a>b) t=s+t; else if(a==b) t=5; else t=2*s; printf("s=%d,t=%d",s,t); }

【单选题】以下代码段: if s == 5 : t = 5 s += 1 语句 s += 1 A. 仅当变量s值为5时才执行 B. 仅当变量t值为5时才执行 C. 总会被执行

It's already 5 o'clock now. Don't you think it's about time we are going home A: It's B: o'clock C: Don't you D: are going

In paragraph 5, the professor wasn’t impressed by Smith’s plan and told Smith he couldn’t quantify the idea and clearly it wasn’t ________.