BPG致力于知识的发现和传播
Total Visits of This Article
2020 | 总访问次数
排名 国家/地区 数量 占比
1 United States 52 35.6%
2 China 32 21.9%
3 Germany 21 14.4%
4 Japan 6 4.1%
5 Netherlands 5 3.4%
6 Russia 5 3.4%
7 United Kingdom 4 2.7%
8 Colombia 4 2.7%
9 Korea, Republic of 3 2.1%
10 Hong Kong 3 2.1%
11 Argentina 2 1.4%
12 France 2 1.4%
13 Spain 2 1.4%
14 Turkey 1 0.7%
15 Peru 1 0.7%
16 Canada 1 0.7%
17 Denmark 1 0.7%
18 India 1 0.7%