A . SELECT姓名FROM教师表WHERE(教师号<>ANY(SELECT教师号FROM授课表WHERE课程号=“C140”))
B . SELECT姓名FROM教师表WHERENOTEXISTS(SELECT*FROM授课表WHERE教师号=教师表.教师号AND课程号=“C140”)
C . SELECT姓名FROM教师表WHERENOTIN(SELECT*FROM授课表WHERE教师号=教师表.教师号AND课程号=“C140”)
D . SELECT姓名FROM教师表WHERE(教师号NOTALL(SELECT教师号FROM授课表WHERE课程号=“C140”))
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