【简答题】A.He could renew it. B.He could destroy it at random. C.He could sell it and make a lot of money. D.He could do nothing since the patent expired.
【单选题】( )himself an ideal job.
【单选题】He said he wasn't disappointed at the result of the final exam,but the look on his face________ himself________. [ ]
【简答题】详细阐述大数据、云计算和物联网三者之间的区别与联系。