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 189 41.9%
2 United States 140 31%
3 Netherlands 32 7.1%
4 Germany 31 6.9%
5 Russia 11 2.4%
6 Korea, Republic of 9 2%
7 Hong Kong 9 2%
8 Senegal 4 0.9%
9 Ireland 3 0.7%
10 Canada 3 0.7%
11 France 3 0.7%
12 Norway 3 0.7%
13 Brazil 2 0.4%
14 Czech Republic 2 0.4%
15 Japan 2 0.4%
16 Macao 2 0.4%
17 Malaysia 1 0.2%
18 Nigeria 1 0.2%
19 Serbia 1 0.2%
20 Taiwan 1 0.2%
21 India 1 0.2%
22 Finland 1 0.2%