As examples of the use of solar power, the author describes_______.
选项:
A: how solar roofs are used in Japan and the U.S.
B: how solar power is provided in every building in Japan and the U.S.
C: how Japanese scientists are producing cheap solar power
D: how most buildings in the U.S. are heated by solar power
发布时间:2024-05-11 16:56:48