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 443 38.9%
2 United States 323 28.4%
3 Netherlands 186 16.3%
4 Germany 83 7.3%
5 France 32 2.8%
6 Canada 20 1.8%
7 Sweden 15 1.3%
8 Ukraine 8 0.7%
9 Russia 5 0.4%
10 United Kingdom 3 0.3%
11 Taiwan 3 0.3%
12 Hungary 3 0.3%
13 India 2 0.2%
14 Korea, Republic of 2 0.2%
15 Moldova, Republic of 2 0.2%
16 Brazil 2 0.2%
17 Singapore 2 0.2%
18 Poland 2 0.2%
19 Turkey 1 0.1%
20 Finland 1 0.1%