Today,hi-tech play an important part in our lives.Many people have invented robots like home robots,teaching robots,worker robots,...Home robots can cook meals,make tea or coffee,clean the house,...Teaching robots can teach children Maths,Physic,Music and other subjects.Some robots can guard our house,understand what we say and recognize owners's fingerprints. Scientists think that robots can do what people do someday!

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Sau khi Phùng Hưng mất, người nối nghiệp là

A. em trai Phùng Hải.

B. con trai Phùng An.

C. không có ai nối nghiệp.

D. tất cả các tướng cùng hợp sức nối nghiệp.