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 211 60.3%
2 United States 59 16.9%
3 Germany 32 9.1%
4 Canada 11 3.1%
5 Netherlands 9 2.6%
6 Japan 4 1.1%
7 Spain 3 0.9%
8 3 0.9%
9 Armenia 2 0.6%
10 France 2 0.6%
11 Hong Kong 2 0.6%
12 Hungary 2 0.6%
13 India 2 0.6%
14 United Arab Emirates 2 0.6%
15 Korea, Republic of 2 0.6%
16 Russia 2 0.6%
17 Lithuania 1 0.3%
18 Taiwan 1 0.3%