题文
15. Nowadays with the development of science, more and more new technology_______to the fields of IT.
| A．has introduced | B．was introduced | C．will introduce | D．is being introduced |
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15. Nowadays with the development of science, more and more new technology_______to the fields of IT.
| A．has introduced | B．was introduced | C．will introduce | D．is being introduced |
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