Jiangsu Province ____ a series of activities to protect water resources over the past few months. Early this year, several cities ___ citizens to use new types of toilet equipment.

A．organised; called for

B．has organised; called for

C．organised; has called for

D．has organised; has called for

把下列的四次战役按时间的先后顺序排列：       （         ）

①辽沈战役     ②平津战役       ③淮海战役        ④渡江战役

A．①③②④

B．②①③④

C．④③②①

D．②①④③