SSD7 选择题。MultipleChoice
ViewAssessmentResult:Multiple-ChoiceQuiz2Yourperformancewasasfollows:1.Thedegreeofatableisthenumberof_____inthetable.(a)keys(b)columns(c)rows(d)foreignkeysCorrectansweris(b)Yourscoreonthisquestionis:10.00Feedback:(b)---------------------------