My father enjoys his spare time by reading newspapers or________to music.

A．listening

B．listens

C．to listen

D．listen

实施西部大开发战略以后，东部沿海发达地区选派大批优秀人才支援内地属于[ ]

A、对口帮扶

B、招商引资

C、科技、信息和人才联系

D、东部与西部地区企业的合作