Which of the following tests are NOT used to examine the weak form of the efficient market hypothesis Those that examine:（）

A. whether security returns are independent over time.

B. a security’s return relative to the market return.

C. whether excess returns can be obtained from using mechanical trading rules.

红细胞内出现的异常结构包括（）

A.嗜碱性点彩

B.Howell-Jolly小体

C.Cabot环

D.寄生虫

E.Auer小体