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 113 59.2%
2 United States 38 19.9%
3 Germany 8 4.2%
4 Hong Kong 8 4.2%
5 Japan 7 3.7%
6 Taiwan 4 2.1%
7 United Kingdom 4 2.1%
8 Singapore 3 1.6%
9 Canada 2 1%
10 Russia 2 1%
11 France 1 0.5%
12 Portugal 1 0.5%