.Mr Smith was __________to hear the _______news that he won the first prize.

A．astonishing ,astonished

B．astonished,astonishing\

C．astonishing,astonishing

D．astonished,astonished

一次棋赛，记分方法是，胜者得2分，负者得0分，和棋两人各得1分，每位选手都与其他选手各对局一次，现知道选手中男生是女生的10倍，但其总得分只为女生得分的4.5倍，问共有几名女生参赛？女生共得几分？