细节题可根据提干关键字到原文中定位！
A．medicine B. the Internet C．brain cells D. human organ
58．Humans may live longer in the future because_____.
A．heart disease will be far away from us
B．human brains can decide the final death
C．the basic materials of cells will last forever
D．human organs can be repaired by new medicine
59．We can learn from the passage that ____.