—Yao Yuan, a disabled woman, won the National Championships Cup last week.

—My goodness! She _______a lot of difficulties!

A．may go through

B．might go through

C．must have gone through

D．ought to have gone through

有关溶血性贫血，正确的说法是()

A．红细胞DNA合成障碍

B．缺乏促红细胞生成素

C．可见嗜多色性红细胞

D．红细胞表面积与体积的比例增大

E．网织红细胞升高