With the development of high technology,
题型:选择题
问题:
With the development of high technology, more and more new things _____ to the field of IT. |
A. have introduced B. are being introduced C. were introduced D. had been introduced |
With the development of high technology, more and more new things _____ to the field of IT. |
A. have introduced B. are being introduced C. were introduced D. had been introduced |