Since the 1970s many new applicationshave been found for my.
I have become very important in communication, finance and trade.
I have also been put into robots andusedto make mobile phones as
wel l...
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《金山打字通》 | 467字 | 1.0分钟 | 100% | 94 CPM | 7 次 | 0 | 不及格,加强练习! |
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