【简答题】Ring farewell to the century of physics.It is time to ring in the century of biotechnology.The 20th century medicine did little to increase the natural life-span of healthy humans.The next medical rev...
【简答题】Life in the 22nd century will be different from life in the 20th century, because many changes will take place in the new century, but what will the changes be? The population is fast. There will be m...