Assume: float grade[5], *gPtr=&grade[0]; Which is NOT grade[0] ? A: gPtr+0 B: *gPtr C: gPtr[0] D: *grade

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2022-06-16 问题

Assume: float grade[5], gPtr=&grade[0]; Which is NOT grade[0] ? A: gPtr+0 B: gPtr C: gPtr[0] D: *grade

2022-06-16 问题

下面这段程序，计算5个成绩的最大值（） maxGrade = grade[0]; for(int i=0; i[10; i++){ if(maxGrade ] grade[i]){ maxGrade = grade[i]; } }[/i][/i]

2022-06-07 问题

关系SC(Sno，Cno，Grade)表示学号，课程号，成绩。现要查询最高分在91分以上的学生的学号和平均成绩，正确的语句是______。 A: SELECT Sno，MAX(Grade) FROM SC WHERE MAX(Grade)＞=91 GROUP BY Sno B: SELECT Sno，MAX(Grade) FROM SC GROUP RY Sno HAVING MAX(Grade)＞=91 C: SELECT Sno，MAX(Grade) FROM SC WHERE MAX(Grade)＞=91 ORDER BY Sno D: SELECT Sno，MAX(Grade) FROM SC GROUP BY Cno HAVING MAX(Grade)＞=91

关系SC(Sno，Cno，Grade)表示学号，课程号，成绩。现要查询最高分在91分以上的学生的学号和平均成绩，正确的语句是______。 A: SELECT Sno，MAX(Grade) FROM SC WHERE MAX(Grade)＞=91 GROUP BY Sno B: SELECT Sno，MAX(Grade) FROM SC GROUP RY Sno HAVING MAX(Grade)＞=91 C: SELECT Sno，MAX(Grade) FROM SC WHERE MAX(Grade)＞=91 ORDER BY Sno D: SELECT Sno，MAX(Grade) FROM SC GROUP BY Cno HAVING MAX(Grade)＞=91

2022-06-07 问题

关系SC(Sno，Cno，Grade)表示学号、课程号、成绩。现要查询最高分在91分以上的学生的学号和平均成绩，正确的语句是______。 A: SELECT Sno，MAX(Grade) FROM SC WHERE MAX(Grade)≥91 GROUP BY Sno B: SELECT Sno，MAX(Grade) FROM SC GROUP BY Sno HAVING MAX(Grade)≥91 C: SELECT Sno，MAX(Grade) FROM SC WHERE MAX(Grade)≥91 ORDER BY Sno D: SELECT Sno，MAX(Grade) FROM SC GROUP BY Cno HAVING MAX(Grade)≥91

关系SC(Sno，Cno，Grade)表示学号、课程号、成绩。现要查询最高分在91分以上的学生的学号和平均成绩，正确的语句是______。 A: SELECT Sno，MAX(Grade) FROM SC WHERE MAX(Grade)≥91 GROUP BY Sno B: SELECT Sno，MAX(Grade) FROM SC GROUP BY Sno HAVING MAX(Grade)≥91 C: SELECT Sno，MAX(Grade) FROM SC WHERE MAX(Grade)≥91 ORDER BY Sno D: SELECT Sno，MAX(Grade) FROM SC GROUP BY Cno HAVING MAX(Grade)≥91

2022-05-29 问题

The most common division between primary and secondary education in the US is ___________.（） A: primary schools (Grade 1 to Grade 6) and middle schools (Grade 7 to Grade 12) B: elementary schools (Grade Kindergarten to Grade 8) and high schools (Grade 9 to Grade 12) C: elementary schools (Grade Kindergarten to Grade 3), middle schools (Grade 4 to Grade 6) and high schools (Grade 7 to Grade 12) D: grammar schools (Grade Kindergarten to Grade 6) and high schools (Grade 7 to Grade 12)

The most common division between primary and secondary education in the US is ___________.（） A: primary schools (Grade 1 to Grade 6) and middle schools (Grade 7 to Grade 12) B: elementary schools (Grade Kindergarten to Grade 8) and high schools (Grade 9 to Grade 12) C: elementary schools (Grade Kindergarten to Grade 3), middle schools (Grade 4 to Grade 6) and high schools (Grade 7 to Grade 12) D: grammar schools (Grade Kindergarten to Grade 6) and high schools (Grade 7 to Grade 12)

2022-05-31 问题

Which grade were they in? A: Grade 8 B: Grade 9 C: Grade 10 D: Grade 11

2021-04-14 问题

【单选题】5. 假定student表中有字段grade,grade代表分数,依次统计grade字段的最大值,最小值,平均值的SQL语句是 A. SELECT max(grade),min(grade),average(grade) FROM student; B. SELECT max(grade),min(grade),avg(grade) FROM student; C. SELECT min(grade),average(grade),max(grade) FROM student; D. SELECT min(grade),avg(grade),max(grade) FROM student;

【单选题】5. 假定student表中有字段grade,grade代表分数,依次统计grade字段的最大值,最小值,平均值的SQL语句是 A. SELECT max(grade),min(grade),average(grade) FROM student; B. SELECT max(grade),min(grade),avg(grade) FROM student; C. SELECT min(grade),average(grade),max(grade) FROM student; D. SELECT min(grade),avg(grade),max(grade) FROM student;

2022-05-31 问题