China is accelerating research work into digital currency as the country hopes to use new techniques to digitize paper currency and make transactions more transparent and efficient. 中国正在加快数字货币的研究工作，以求使用新技术将...
New Zealand's five dollar note has been named the banknote of 2015 by the International Bank Note Society -- a clear winner among nearly 40 eligible designs from a record 20 countries. 新西兰5元纸币近日被国际纸币学会评为2015年度最佳...
