A.3B.4C.5D.8
A.全數(shù)B.20個(gè)C.26個(gè)D.40個(gè)
A.小于80%但不小于70%,80%及以上B.小于85%但不小于70%,80%及以上C.小于80%但不小于70%,70%及以上D.小于85%但不小于70%,90%及以上