A．SELECT Cno, AVG(Score) FROM SCS GROUP BY Score ORDER BY 2, Cno Desc B．SELECT Cno, AVG(Score) FROM SCS GROUP BY Cno ORDER BY 2, Cno Desc C．SELECT Cno, AVG(Score) FROM SCS WHERE Cno, Desc GROUP BY Score D．SELECT Cno, AVG(Score) FROM SCS GROUP BY, AVG(Score) ORDER BY, Cno Desc

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;

What is NOT true to that World Cup(). A: It was held in 1986. B: The disputed goal occurred in the quarterfinals. C: The score between Argentina and England was 2 to 1. D: Argentina eventually lifted the World Cup with the score of 2 to 1.

从student表中查询学生姓名、年龄和成绩，结果按照年龄降序排序，年龄相同的按照成绩升序排序，下面SQL语句正确的是： A: select name, age, score from student order by age desc , score; B: select name, age, score from student order by age , score asc; C: select name, age, score from student order by 2 desc , 3 asc; D: select name, age, score from student order by 1 desc , 2；

下列程序段的执行结果为( )。 a=75 If a ＞ 60 Then Score=1 If a ＞ 70 Then Score=2 If a ＞ 80 Then Score=3 If a ＞ 90 Then Score=4 Print "Score= "；Score A: 对顺序文件中的数据操作只能按一定的顺序操作 B: 顺序文件结构简单 C: 顺序文件的数据以字符(ASCII码)形式存储 D: 能同时对顺序文件进行读写操作

通过下面的步骤可以计算出三门功课的总分和平均分。请把下面的文字描述转变为 Python 代码，然后调试并运行。 （1）创建变量 score1，并从键盘上输入分数赋值给 score1。 （2）创建变量 score2，并从键盘上输入分数赋值给 score2。 （3）创建变量 score3，并从键盘上输入分数赋值给 score3。 （4）创建变量 sum，并将 score1、score2 与 score3 的和赋值给 sum。 （5）创建变量 avg，并将 sum除以 3 的商赋值给 avg。 （6）输出 sum和 avg

下面代码的输出结果是()。 <?php $score=87; if($score>=90 && $score<=100){$grade="优秀";} if($score>=80){$grade="良好";} if($score>=70){$grade="一般";} if($score>=60){$grade="及格";} else{$grade="不及格";} echo $grade; ?>

以下参数传递正确的是： A: def score(mid_score, end_score): ……score(88, 79) B: def score( *，mid_score, end_score, mid_rate＝0.4): ……score(88, 79) C: def score( *，mid_score, end_score, mid_rate＝0.4): ……score(end_score = 79, mid_score = 88) D: def score( *，mid_score, end_score, mid_rate＝0.4): ……score(mid_score = 88, end_score = 79,0.5)

There are ________students playing basketball in the room. A: score of B: scores of C: two score D: two score of

若有定义int score&#91;10&#93;;，则对score数组中的元素的正确引用是（ ） A: score[10] B: score[6.0] C: score[0] D: score(7)