单选题 已知如下关系:学生Student(S#, Sname),课程Course(C#, Cname, T#),选课SC(S#, C#, Score),教师T(T#, Tname).其中S#为学号,Sname为学生命名,C#为课号,Cname为课程名,T#为教师编号,Score为成绩,Tname为教师名. 阅读SQL语句 Select Sname From Student Where S# NOT IN ( Select S# From SC, Course C, Teacher T Where T.Tname = '李明' and SC.C# = C.C# and T.T# = C.T# ); 关于其查询结果,下列说法正确的是_____