4×9=36，____是____和____的倍数；____和____是____的因数

塞下曲

李白

五月天山雪，无花只有寒。

笛中闻折柳，春色未曾看。

晓战随金鼓，宵眠抱玉鞍。

愿将腰下剑，直为斩楼兰。

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.

下图为世界某区域图。