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 455 40.3%
2 United States 229 20.3%
3 Netherlands 162 14.3%
4 France 96 8.5%
5 Germany 87 7.7%
6 Canada 19 1.7%
7 Sweden 16 1.4%
8 Russia 14 1.2%
9 Ireland 10 0.9%
10 Hong Kong 7 0.6%
11 Taiwan 6 0.5%
12 India 5 0.4%
13 Norway 5 0.4%
14 Turkey 4 0.4%
15 Switzerland 3 0.3%
16 Brazil 3 0.3%
17 Italy 2 0.2%
18 Japan 2 0.2%
19 Korea, Republic of 2 0.2%
20 Singapore 1 0.1%
21 Austria 1 0.1%
22 Belgium 1 0.1%