With the development of the intelligent robot technology, people _______ the importance of cooperating among robots, and the challenge in practice.
A.have been noticed | B.are noticing |
C.will notice | D.have noticed |
更新时间:2019-03-01 08:29:35
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【推荐1】His brother ___the army since 2012.
A.joined | B.has joined |
C.was in | D.has been in |
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【推荐2】Not only his parents but also his elder brother ___________ to the Summer Palace. They haven’t been back yet.
A.have been | B.have gone |
C.has been | D.has gone |
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