— I’m very tired these days because of the senior high school entrance examination（中考）.

—Why not______music? It can make you ______.

A．listen to; relaxed

B．to listen to; relaxed

C．listen to; relax

D．to listen to; to relax

增感屏对影像效果的影响，不包括（）

A.照片的颗粒性变差

B.影像对比度增加

C.影像清晰度下降

D.照片密度值降低

E.锐利度的下降