– What will motoring be like in the future?

– Most probably it will be ________ electric car, powered by ________ battery

A．the, a

B．the, the

C．/, a

D．an, /

消化性溃疡死亡的主要原因（）

A.十二指肠球部溃疡周边黏膜充血水肿所致

B.十二指肠球部溃疡反复发作瘢痕形成或粘连所致

C.急性穿孔

D.慢性穿孔

E.癌变