阅读下面短文,在空白处填入1个适当的单词或括号内单词的正确形式。The Duan inkstone, one of the four most famous inkstones in China, 【小题1】 (originate) in the mountains by the Duanxi River in Guangdong Province. Since the Tang Dynasty, it has been the 【小题2】 (center) region for Duan inkstone production and even today, most of the villagers still earn their living by making inkstones.
Throughout hundreds of years, villagers have developed 【小题3】 scientific production system. The process involves stone selection, material screening, shape designing, carving, and wooden box matching, among 【小题4】 stone selection and carving are the two most important steps.
Purple 【小题5】 color, Duan inkstones are glossy and as smooth as silk. They enjoy a great reputation as they never crack even when 【小题6】 (place) in low temperatures. It is a long and laborious process to handpick flawless Duan stones. Miners dig in tunnels less than one meter high at the riverside, and using tools such as dynamite (炸药) 【小题7】 (forbid).
Carving involves good conception, and highlights the fine shape of the stones 【小题8】 carving skills. In addition to natural designs, flying dragons, flowers and birds, figures, mountains and waters are common 【小题9】 (image) carved on the stones. The matching boxes are also carefully chosen and are often made of purple sandalwood and rosewood. The Duan inkstone has various styles, and new-style products are designed one after another 【小题10】 (meet) increased export demands.