生理条件下Posm降低后机体的反应为（）。

A.ADH分泌降低

B.FSH降低

C.TSH分泌降低

D.ACTH分泌降低

E.OXT分泌降低

So engrossed in his efforts would Gaugin become that he barely noticed the passing of time.

A．delighted in

B．frustrated by

C．expanded by

D．involved in