[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fhhZKMmRzO9iDlS8qf-JLe8hIT9YgtOJx1HoOcCqzFKg":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":28,"type":29},[],"2025-06-06 20:52:36",195523346,[8,9,10,11],"0","1","2","3",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},15,"18a6eff8ae3b8d06162b2c688af63fee","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F977c8441c4ad7ffe8d096a66aac1dd20.PNG","C语言程序设计","work_43932925","第四章","有如下程序 main() { int a=2,b=-1,c=2; if(a)c=2;else if(b<0) c=0; else c++; printf("%d\\n",c); } 该程序的输出结果是( )",[21,30,39,48,54,63,71,79,88,91],{"answer":22,"createTime":5,"id":23,"options":24,"question":27,"source":28,"type":29},[],195523330,[25,26,8,9],"true","非零值","表达式:10!=9的值是( )","v1",0,{"answer":31,"createTime":5,"id":32,"options":33,"question":38,"source":28,"type":29},[],195523332,[34,35,36,37],"a>=10 or a<=0","a>=0|a<=10","a>=10 &&a<=0","a>=10‖a<=0","能正确表示逻辑关系:"a≥10或a≤0"的C语言表达式是( )",{"answer":40,"createTime":5,"id":41,"options":42,"question":47,"source":28,"type":29},[],195523334,[43,44,45,46],"'a'<=c<= 'z'","(c>= 'a')||(c<= 'z')","('a'<=c)and ('z'>=c)","(c>= 'a')&&(c<= 'z')","若变量c为char类型,能正确判断出c为小写字母的表达式是( )",{"answer":49,"createTime":5,"id":50,"options":51,"question":53,"source":28,"type":29},[],195523336,[25,52,8,9],"false","有如下程序段 int a=14,b=15,x; char c='A'; x=(a&&b)&&(c<'B'); 执行该程序段后,x的值为( )",{"answer":55,"createTime":5,"id":56,"options":57,"question":62,"source":28,"type":29},[],195523338,[58,59,60,61],"(x<=y)&&(y<=z)","(x<=y)AND(y<=z)","(x<=y<=z)","(x<=y)&(y<=z)","表示数学上的关系x<=y<=z的C语言表达式为( )",{"answer":64,"createTime":5,"id":65,"options":66,"question":70,"source":28,"type":29},[],195523340,[11,67,68,69],"4","5","6","阅读以下程序:main() { int x; scanf("%d",&x); if(x--<5) printf("%d",x); else printf("%d",x++); } 程序运行后,如果从键盘上输入5,则输出结果是 ( )",{"answer":72,"createTime":5,"id":73,"options":74,"question":78,"source":28,"type":29},[],195523342,[75,76,77,9],"无输出","结果不确定","-1","语句:printf("%d",(a=2)&&(b= -2);的输出结果是( )",{"answer":80,"createTime":5,"id":81,"options":82,"question":87,"source":28,"type":29},[],195523344,[83,84,85,86],"0.000000","0.250000","0.500000","1.000000","有如下程序 main( ) { float x=2.0,y; if(x<0.0) y=0.0; else if(x<10.0) y=1.0\u002Fx; else y=1.0; printf("%f\\n",y); } 该程序的输出结果是( )",{"answer":89,"createTime":5,"id":6,"options":90,"question":19,"source":28,"type":29},[],[8,9,10,11],{"answer":92,"createTime":5,"id":93,"options":94,"question":99,"source":28,"type":29},[],195523348,[95,96,97,98],"CDE","C","CD","DE","下面输出的结果为( ). k=2;switch(k){ case 2: case 3:putchar('C'); case 4:putchar('D');break; default:putchar('E');}"]