圖中0預測的準確率和召回率是多少?()
A.0.81 B.0.77 C.0.80 D.0.78
如下表student中,如何篩選type為包含數(shù)學或語文的記錄?()
A.select*from student where type=“數(shù)學” and type=“語文” B.select*from student where type=“數(shù)學” or type=“語文” C.select*from student where type in(“數(shù)學”,“語文”) D.select*from student where type in(“數(shù)學”、“語文”)