红细胞血红蛋白分布宽度的英文略语是（）
血细胞比容的英文略语是（）

A.ANISO

B.HDW

C.BL－ABN

D.PCV

E.platelet clumps

Which of the following efficient markets studies suggests that securities markets are semip-form efficient（）

A. Small-firm effect.

B. Short-term stock splits.

C. Neglected-firm effect.