With the help of high technology, in the past few years, electronic business to bank industry, travel industry.
A. applied
B. have applied
C. had been applied
D. has been applied
网友回答
A. applied
B. have applied
C. had been applied
(答案→)D. has been applied
解析：本题考查时态。根据句中时间状语in the past few years，故用现在完成时。electronic business与apply之间为被动关系，故选D。