【简答题】(2016· 全国卷 II ) She gave me a comforting smile, nodded while _________ (listen) patiently.
【简答题】(2016· 全国卷 II )Are you interested in becoming a ___ ________ (music) and getting a recording contract?
【简答题】生物细胞中的能量转换器有______、______.动植物细胞都有的能量转换器是______.