BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 China 46 43%
2 United States 25 23.4%
3 Germany 14 13.1%
4 Canada 6 5.6%
5 Hong Kong 5 4.7%
6 Netherlands 3 2.8%
7 Taiwan 3 2.8%
8 United Kingdom 3 2.8%
9 France 1 0.9%
10 Portugal 1 0.9%