Most of the children enjoy ___________ computer games.[ ]

A. play

B. playing

C. played

D. to play

属于非货币性资产交换的有()。

A.以应收账款换入土地 

B.以交易性金融资产换入机器设备 

C.可供出售金融资产换入未到期应收票据 

D.以专利技术换入长期股权投资