A.兒童強不睡,相守夜歡嘩B.千門萬戶瞳瞳日,總把新桃換舊符C.誰家見月能閑坐,何處聞燈不看來D.清明時節(jié)雨紛紛,路上行人欲斷魂
A.眾數(shù)B.平均數(shù)C.中位數(shù)D.加權平均數(shù)
A.一更B.二更C.三更D.四更