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 511 51.5%
2 United States 257 25.9%
3 Netherlands 69 7%
4 Germany 66 6.7%
5 France 34 3.4%
6 Canada 19 1.9%
7 Hong Kong 8 0.8%
8 India 7 0.7%
9 Russia 6 0.6%
10 Serbia 2 0.2%
11 Sweden 2 0.2%
12 Ireland 2 0.2%
13 Italy 2 0.2%
14 Belarus 2 0.2%
15 Azerbaijan 2 0.2%
16 Bahrain 1 0.1%
17 Czech Republic 1 0.1%
18 South Africa 1 0.1%