对于关系模式S（Sno，Sname，Age，Dept），C（Cno，Cname，Teacher），SC（Sno，Cno，Score），下列查询结果相同的是（ ）。I．πSname((S) ∞σScore>60(SC)) II．πSname(σScore>60(S∞SC)) III．σScore>60 (πSname (S∞ SC)) IV．σScore>60 (πSname (S)∞ (SC)) A: I与II B: III与IV C: I与III D: II与IV

---Our monitor is really into Jay Zhou's music.He has at least_______ Jay Zhou's CDs.--- No wonder he can sing every single song of Jay Zhou's very well. A: three scores of B: three score of C: three score D: score of

中国大学MOOC: 写出下面程序执行后的运行结果。#include <stdio.h>struct STU {char name[10];int num;int Score;};int main(){struct STU s[5]={{"YangSan",20041,703},{"LiSiGuo",20042,580},{"wangYin",20043,680},{"SunDan",20044,550},{"Penghua",20045,537}},*p[5],*t;int i,j;for(i=0;i<5;i++) p[i]=&s[i];for(i=0;i<4;i++)for(j=i+1;j<5;j++)if(p[i]->Score>p[j]->Score){ t=p[i]; p[i]=p[j]; p[j]=t;}printf("%d %d",s[1].Score,p[1]->Score); return 0;}

有关系表SC(S# , C#, Score),求“001”号课成绩比“002”号课成绩高的所有学生的学号。下列SQL语句正确的是_________。[br][/br](单选题) A: Select S1.S B: From SC S1, SC S2 Where S1.S C: = S2.S D: and S1.C E: =‘001’ and S2.C F: =‘002 ; G: Select S1.S H: From SC S1, SC S2 Where S1.S I: = S2.S J: and S1.C K: =‘001’ and S2.C L: =‘002’ and S1.Score > S2.Score; M: Select S1.S N: From SC S1, SC S2 Where S1.S O: = S2.S P: and S1.C Q: =‘001’ and S2.C R: =‘002’ and S2.Score > S1.Score; S: Select * From SC S1, SC S2 Where S1.S T: = S2.S U: and S1.C V: =‘001’ and S2.C W: =‘002’ and S1.Score > S2.Score;

下面用if语句统计“成绩(score)优秀的男生以及不及格的男生”的人数，正确的语句为_____。 A: if(gender=="男" and score &lt;60 or score&gt;=90): n+ = 1 B: if(gender=="男" and score &lt;60 and score&gt;=90): n+ = 1 C: if(gender=="男" and (score &lt;60 or score&gt;=90)): n+ = 1 D: if(gender=="男" or score &lt;60 or score&gt;=90): n+ = 1

以下关于结构体数组和结构体元胞数组的语句中，正确创建结构体元胞数组的是 A: data.name='张三'; data.score=87;data.name='李四'; data.score=65; B: data(1).name='张三'; data(1).score=87;data(2).name='李四'; data(2).score=65 C: data[1].name='张三'; data[1].score=87;data[2].name='李四'; data[2].score=65; D: data{1}.name='张三'; data{1}.score=87;data{2}.name='李四'; data{2}.score=65;

Mary’s score on the test is the highest in her class; She____have studied very hard.

59（） A: everything is wrong B: Do you agree C: let’s total the score D: let’s do it E: we can do it F: Here is the answer sheet G: Here is your score H: the percentage is incorrect

score是一个整数数组，有五个元素，已经正确初始化并赋值，仔细阅读下面代码，程序运行结果是() temp = score[0]; for (int index = 1;index < 5;index++) { if (score[index] < temp) { temp = score[index]; } }

编写如下程序： Private Sub Command1_Click() Dim score As Integer score = 90 If score > 80 Then r = 5 ElseIf score > 60 Then r = 3 Else r = 1 End If Print r End Sub 程序运行后，单击命令按钮Command1，输出结果为（______）。