I still remember __________ chess in class by my teacher about twenty years ago.

A．to be caught to play

B．being caught playing

C．catching play

D．having caught playing

与名义GDP相比，实际GDP是指（）

A.名义GDP减去对别国的赠与；

B.名义GDP减去全部的失业救济；

C.将名义GDP根据价格变动进行调整后得到；

D.将名义GDP根据失业变动进行调整后得到。