----Do you know the result of the ________ race?

----Yes. The winner is a boy ________ Lin Feng from Class 4.

A．100-metres, called

B．100-metre; calling

C．100-metre; called

D．100-metres, calling

患者男性，30岁。患者清晨或劳作后经常出现冷汗、心慌、头晕、四肢发凉、饥饿无力、手足震颤等表现，一般进食后能迅速缓解。空腹血糖测定<2.12mmol/L，最可能的原因是（）

A.糖尿病

B.心功能不全

C.胰岛素瘤

D.肾上腺皮质功能不全

E.库欣综合征