A.股價上漲幅度大 B.股價下跌幅度大 C.股價震蕩,收盤與開盤不等價 D.股價震蕩,收盤與開盤等價
A.算術(shù)平均數(shù) B.幾何平均數(shù) C.加權(quán)平均數(shù) D.直接平均數(shù)
A.14.78% B.13.86% C.16.53% D.18%