居民税收管辖权(名词解释)

A. create a world ruled by robots
B. eliminate the need for human athletes
C. test out artificial intelligence technology
D. for scientists to get together and have a good time

A. Body doesn"t work as much in the sleep as in the day time.
B. Seven or eight hours of sleep is comparably good to people"s health.
C. Enough evidence has shown that excessive sleep leads to health problems as well.
D. The study chose people working in government sectors as subjects.