问题补充:
With the development of science and technology , more new technology to the fields of IT.
A. has been introducing
B. is being introduced
C. is introduced
D. was introduced
答案:
A. has been introducing
(答案→)B. is being introduced
C. is introduced
D. was introduced
解析:这题考查时态语态,句意是:随着科技的发展,更多新科技正在被引进到IT领域。选B。