A: Did you p____ football last Sunday?
B:Yes, we did.
--- No, she went to the party.
手机间是利用 ____波传递信号的,其信号的传播速度与光速 ____(填“相同”或“不相同”).能源是社会发展的宝贵资源,若将能源分为可再生能源和不可再生能源,则太阳能属于 ____能源.