The manager had fallen asleep where he ______, without undressing.

A．was laying

B．was lying

C．had laid

D．had lied

（）一般是利用总产出物量指数乘以基期不变价增加值，求得当期不变价增加值。

A.双缩法

B.单缩法

C.双外推法

D.单外推法