BPG致力于知识的发现和传播
Total Visits of This Article
2021 | 总访问次数
排名 国家/地区 数量 占比
1 China 45 41.3%
2 United States 23 21.1%
3 Germany 9 8.3%
4 Singapore 8 7.3%
5 Netherlands 6 5.5%
6 Russia 3 2.8%
7 India 3 2.8%
8 Macao 2 1.8%
9 Hong Kong 2 1.8%
10 Taiwan 2 1.8%
11 United Kingdom 2 1.8%
12 Slovakia 1 0.9%
13 France 1 0.9%
14 Canada 1 0.9%
15 Japan 1 0.9%