已知半径R的球的球面上有三个点，其中任意两点间的球面距离都等于$\frac{\mathrm{\pi }\mathrm{R}}{3}$，且经过这三个点的小圆周长为4π，则R=（　　）

以下五家银行行标中，既是中心对称图形又是轴对称图形的有（    ）

A

    A king loved music. One day, a man 1 the king a harp (竖琴). When the king played it,   the harp sounded terrible. Many people tried it. They agreed that the harp was useless. It was thrown out as rubbish.

    A little girl found the harp. She didn't know how to 2 it. She decided to have a try. She played day and night. The music was never perfect,  3 each time it sounded a little better.

    One day, the harp started to produce beautiful music. In fact, it was a 4 harp. It could be played well by someone if he put in enough effort (努力).

    The king called the girl to the palace. When he saw that she was playing the old harp. He was filled with joy. He made the girl his own private 5.