Wind technology is taking off so fast that by mid-century, it could surpass coal as the number-one power source on the grid.
举一反三
- Before people found and utilized fossil-fuel in transportation, the energies to power vehicles are ( ). A: Solar energies and wind B: Charcoal and coal C: The action of human muscles and wind D: Wood and coal
- People in Europe have had more advanced technology in using wind power than Americans.
- Wind power is an ancient source of energy __________ we may return in the near future.
- They walked so fast that I could not _____ them.
- According to the author, what was one of the greatest benefits of living off the grid?