China boasts its brilliant and long history, in    1     the Song Dynasty (AD 960 —1279) was very wealthy with its large population and fast-growing economy. At the    2     (high) of its power, a huge number of technological innovations    3     (emerge) with many practically significant applications.

Bi Sheng of the Northern Song Dynasty (AD 960 —1127) invented the movable type printing, using individual blocks. The blocks could each print a single character and then be used     4     (repeated). To be more efficient, he prepared two sets of iron boards. When    5     was being used for printing, the other could be used to arrange characters for the next page. This time-honored technology, the movable type printing, was one of the     6     (important) inventions in the Song Dynasty, and greatly improved the speed and quality of printing, having     7     influence on the world. However, it was not until around 15th century     8     this technology eventually showed up in Europe. Furthermore, the Chinese were also the first     9     (invent) the compass, which changed sailors’ navigation in the sea.     10     (accompany) with star charts, another Chinese invention, the compass made sea travel much easier.