【简答题】设学生课程数据库中有三个关系: 学生关系S(S#,SNAME,AGE,) 学习关系SC(S#,C#,GRADE) 课程关系C(C#,CNAME) 其中S#、C#、SNAME、AGE、、GRADE、CNAME分别表示学号、课程号、姓名、年龄、性别、成绩和课程名。 用SQL语句表达下列操作 (1)检索选修课程名称为“MATHS”的学生的学号与姓名 (2)检索至少学习了课程号为“C1”和“C...
【单选题】printf函数,转义字符\n表示( )
【单选题】— _____ do you _____ the pink skirt? – It’s very nice.
【多选题】Skirt can include________and ______
【单选题】—What color is your skirt? —It's __________. It's __________ skirt. [ ]
【单选题】What does the woman mean?
A.
She made the skirt herself.
B.
Her mother made the skirt for her.
C.
Her mother bought the skirt for her.