[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f9Bv_WD5LaQWyIM17ao2D6Q1fm8cKfvybyCaFk76ow3o":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":10,"question":17,"related":18,"source":22,"type":23},[],"2025-12-03 17:36:21",249161978,[8,9],"正确","错误",{"count":11,"courseId":12,"courseImg":13,"courseName":14,"workId":15,"workName":16},12,"6f6fae4d864f2a1df4bb1b747a308c63","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F9e9cf060fe94e45ac45a8b2e39d01e4a.png","概率论与数理统计--第23-24-2期","work_47232903","作业2-1 模块二 结构化程序设计--顺序结构与选择结构(1)","样本空间的分割是指事件组A1,…,An满足相互独立且两两互斥",[19,24,29,34,39,46,51,56,61,67],{"answer":20,"createTime":5,"id":6,"options":21,"question":17,"source":22,"type":23},[],[8,9],"v1",3,{"answer":25,"createTime":5,"id":26,"options":27,"question":28,"source":22,"type":23},[],249161979,[8,9],"全概率公式对任意事件都成立",{"answer":30,"createTime":5,"id":31,"options":32,"question":33,"source":22,"type":23},[],249161980,[8,9],"全概率公式是乘法公式和加法公式的综合应用",{"answer":35,"createTime":5,"id":36,"options":37,"question":38,"source":22,"type":23},[],249161981,[8,9],"在找到样本空间的一个分割A1,…,An时,对任意事件B且P(B)>0,可用贝叶斯公式计算P(Ai|B)的概率",{"answer":40,"createTime":41,"id":42,"options":43,"question":44,"source":22,"type":45},[],"2025-12-15 16:44:43",266498745,[],")以下是判断三角形类型的一段不完整代码: if (\u002F* 条件1 *\u002F) { printf("不能构成三角形");} else if (a == b && b == c) { printf("等边三角形");} else if (\u002F* 条件2 *\u002F) { printf("等腰三角形");} else if (\u002F* 条件3 *\u002F) { printf("直角三角形");} else { printf("普通三角形");} 请补充条件 1、条件 2、条件 3 的具体内容并加上相应说明,并解释为什么 "等边三角形" 的判断要放在 "等腰三角形" 之前",6,{"answer":47,"createTime":41,"id":48,"options":49,"question":50,"source":22,"type":45},[],266498748,[],")简述 C 语言中if-else语句与switch语句的适用场景有何不同",{"answer":52,"createTime":41,"id":53,"options":54,"question":55,"source":22,"type":45},[],266498750,[],")请简述 C 语言中if-else双分支结构的执行逻辑.若要判断一个整数是否为偶数,该如何设计if后的条件表达式",{"answer":57,"createTime":41,"id":58,"options":59,"question":60,"source":22,"type":45},[],266498752,[],")编写程序时,若需要根据用户输入的学生成绩(0-100 分)判断等级(90-100 分为 A,80-89 分为 B,70-79 分为 C,60-69 分为 D,60 分以下为 E),请选择 "多分支if-else嵌套" 结构的设计思路",{"answer":62,"createTime":41,"id":63,"options":64,"question":65,"source":22,"type":66},[],266498754,[],")以下程序用于从键盘输入一个整数,判断其是否为正数并输出结果.请分析程序,补全空缺部分(不要加空格). #include <stdio.h> int main() { int num; \u002F\u002F 从键盘输入整数 printf("请输入一个整数:"); scanf("%d", ___1___); \u002F\u002F 判断是否为正数 if (___2___) { printf("%d是正数\\n", num); } else { printf("%d不是正数\\n", num); } return 0; } (1)若输入5,程序输出结果为____3____;(2)若输入-3,程序输出结果为____4____",2,{"answer":68,"createTime":41,"id":69,"options":70,"question":71,"source":22,"type":66},[],266498756,[],")以下是基于嵌套if分支判断三角形类型的一段不完整代码.请分析程序,补全空缺部分(不要加空格). #include <stdio.h> int main(){ int a, b, c; printf("请输入三角形三边长度(空格分隔):"); scanf("%d %d %d", &a, &b, &c); \u002F\u002F 先判断能否构成三角形(外层if) if(a + b <= c || a + c <= b || b + c <= a){ printf("不能构成三角形\\n"); }else{ if(___1___){ printf("等边三角形\\n"); }else if(___2___){ printf("等腰三角形\\n"); }else if(___3___){ printf("直角三角形\\n"); }else{ printf("普通三角形\\n"); } } return 0; }"]