Jade is the highest award in Chinese culture and medals are the most important prize in Olympics，so medals with jade is the perfect ______ to present the Olympics in Beijing.

A．combination

B．cooperation

C．connection

D．composition

缺铁性贫血的临床表现不包括（）

A.皮肤干燥、缺乏光泽

B.反甲或匙状甲

C.舌炎、口腔炎、吞咽困难

D.黄疸

E.胃炎