Going to ______ British high school for one year was _____ very enjoyable and exciting experience for me.

A．/; /

B．a; a

C．the; a

D．a; the

某数字电压表的最大计数容量为19999，通常称该表为4.5位数字电压表；若其最小量程为0.2V，则其分辨力为（）。