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 55 36.2%
2 United States 33 21.7%
3 Germany 17 11.2%
4 Netherlands 14 9.2%
5 Hong Kong 8 5.3%
6 Japan 5 3.3%
7 France 4 2.6%
8 India 4 2.6%
9 Australia 3 2%
10 Belarus 2 1.3%
11 Czech Republic 2 1.3%
12 United Kingdom 2 1.3%
13 Singapore 1 0.7%
14 Taiwan 1 0.7%
15 Canada 1 0.7%