圖中0預(yù)測(cè)的準(zhǔn)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(xué)或語文的記錄?()
A.select*from student where type=“數(shù)學(xué)” and type=“語文” B.select*from student where type=“數(shù)學(xué)” or type=“語文” C.select*from student where type in(“數(shù)學(xué)”,“語文”) D.select*from student where type in(“數(shù)學(xué)”、“語文”)