---Dad, could I have an MP3 like this one ?

---Sure, we can buy ________ one, but as good as this.

A．a more cheap

B．a much cheaper

C．a most cheap

D．the cheapest

某部电影的一个场景：一天中午，某生产队集体食堂里热热闹闹，几张餐桌上摆满了四菜一汤，每桌八人正在用餐，社员尽管吃饱，吃饭不要钱……这一场景反映的是

A．农业合作化运动

B．农村人民公社化运动

C．土地改革运动

D．“大跃进”运动