《捣练图》、《虢国夫人游春图》以及周昉的《簪花仕女图》等，成为了解研究中国古代（）画的最珍贵的作品。

As a scientist, Madam Curie devoted herself ________ to her research and that was why she was given two Nobel Prizes.

A．strongly

B．entirely

C．extremely

D．gradually