题干
The most energetic and important festivals are ______ that look forward_____ the end of winter and to the coming of spring.
A：ones; i
B：the ones; /
C：onesto
D：the ones; to
答案(点此获取答案解析）
D
的不同带电粒子，其中带电粒子1从A点飞出磁场，带电粒子2从B点飞出磁场，不考虑带电粒子的重力．则（ ）