Information has been put forward__________more middle school graduates will be admitted into universities.

A．while

B．that

C．when

D．as

下列哪种疾病，骨髓铁染色细胞外铁是阴性反应（）

A.再生障碍性贫血

B.继发于感染所致的贫血

C.溶血性贫血

D.海洋性贫血

E.以上都不是