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阅读下列短文,从每篇短文后所给各题的四个选项(A、B、C和D)中,选出最佳选项A In a few years,you might be able to speak Chinese,Korean,Japanese,French,and English—and all at the same time.This sounds incredible,but Alex Waibel,a computer science professor at US’s Carnegie Mellon University(CMU)and Germany’s University of Karl-