LHASA, Oct. 29 (Xinhua) -- At a thangka art exhibition in the Xizang Museum, a digital painting device became a favorite among visitors. With just a few strokes -- drawing lines, picking colors and ...

视频简介：本节目主要内容：日升昌汇票有五道防伪，分别是：特殊纸张，神秘水印，独有印章，神奇密码，个性书法 ...