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 557 42.5%
2 United States 252 19.2%
3 Netherlands 239 18.2%
4 Germany 95 7.3%
5 France 83 6.3%
6 Canada 19 1.5%
7 Korea, Republic of 9 0.7%
8 Taiwan 9 0.7%
9 United Kingdom 8 0.6%
10 Lithuania 7 0.5%
11 Norway 5 0.4%
12 Singapore 5 0.4%
13 Sweden 5 0.4%
14 Hong Kong 4 0.3%
15 India 3 0.2%
16 Russia 3 0.2%
17 Japan 2 0.2%
18 Slovakia 2 0.2%
19 Indonesia 1 0.1%
20 Hungary 1 0.1%
21 Brazil 1 0.1%