[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fEueFlIWgYJGmc_npeGBCuOW_vx35o4c5jhFFqmnS8yk":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":32},[],"2025-06-07 17:27:21",195880144,[8,9,10,11],"1","-1","0","不确定",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},11,"ab4198e5479af6565457a0d0b92c3379","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F31b22df1760b57e8920c6bc712ca70f7.png","C语言程序设计","work_42353733","U4 Viewing","读下面程序段,当x=-3时,输出y的值为( ) int x,y; y=0; scanf("%d",&x); if(x>=0) if(x>0) y=1; else y=-1; printf("y=%d",y)",[21,33,42,45,55,64,71,76,82,88],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2025-06-07 17:27:20",195880135,[26,27,28,29],"x%2==1","x\u002F2","x%2!=0","x%2==0","以下选项中,当x为大于1的奇数时,值为0的表达式( )","v1",0,{"answer":34,"createTime":5,"id":35,"options":36,"question":41,"source":31,"type":32},[],195880140,[37,38,39,40],"只能是关系表达式","只能是逻辑表达式","只能是关系或逻辑表达式","可以是任何合法表达式","在C语言中,if语句后的一对圆括号中有一个用以决定分支走向的表达式,该表达式( )",{"answer":43,"createTime":5,"id":6,"options":44,"question":19,"source":31,"type":32},[],[8,9,10,11],{"answer":46,"createTime":47,"id":48,"options":49,"question":54,"source":31,"type":32},[],"2025-06-07 17:27:22",195880149,[50,51,52,53],"if('z'>=ch>='a') ch=ch-32","if(ch>='a'&&ch<='z') ch=ch-32","ch=('z'>=ch>='a')?ch-32:ch","ch=( ch>='a'&&ch<='z')?ch:ch-32","下列语句将小写字母转化为大写字母,正确的语句为( )",{"answer":56,"createTime":47,"id":57,"options":58,"question":63,"source":31,"type":32},[],195880154,[59,60,61,62],"可以是变量","可以是常量或变量","只能是常量或常量表达式","无论是何种表达式,只要在执行时有确定的值就行","关于与switch语句配套的case语句中所使用的表达式,说法正确的是( )",{"answer":65,"createTime":66,"id":67,"options":68,"question":69,"source":31,"type":70},[],"2025-06-07 17:27:23",195880161,[],"在算术运算符、关系运算符、逻辑运算符和赋值运算符中,运算优先级最高的运算符是 ,最低的是",2,{"answer":72,"createTime":66,"id":73,"options":74,"question":75,"source":31,"type":70},[],195880169,[],"正确表示数学关系"1<a<4"的C语言表达式为____________________",{"answer":77,"createTime":78,"id":79,"options":80,"question":81,"source":31,"type":70},[],"2025-06-07 17:27:24",195880177,[],"整型变量n不能被3整除的条件判断表达式为",{"answer":83,"createTime":84,"id":85,"options":86,"question":87,"source":31,"type":70},[],"2025-06-07 17:27:25",195880184,[],"以下程序段的功能是:对输入的大写字母循环移动6个位置后输出,如'A'变为'G','W'变为'C'.请将程序段补充完整. char ch; ch= ; if(ch>='A'&& ) else if( ) putchar(ch)",{"answer":89,"createTime":84,"id":90,"options":91,"question":92,"source":31,"type":70},[],195880191,[],"以下程序段功能是根据学生考试成绩,确定其成绩等级,请将程序段补充完整. char level; \u002F\u002F成绩等级 float score; \u002F\u002F考试成绩 scanf("%f",&score); switch( ) { :level='A'; ; case 8: level='B';break; case 7: level='C'; break; case 6: level='D'; break; default: ; } printf("考试成绩等级为: .",level)"]