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 100 45.5%
2 United States 62 28.2%
3 Germany 12 5.5%
4 Netherlands 10 4.5%
5 Canada 6 2.7%
6 Belgium 6 2.7%
7 France 4 1.8%
8 Korea, Republic of 4 1.8%
9 Hong Kong 3 1.4%
10 Japan 2 0.9%
11 Brazil 2 0.9%
12 Malaysia 2 0.9%
13 Taiwan 2 0.9%
14 United Kingdom 2 0.9%
15 Russia 1 0.5%
16 Sweden 1 0.5%
17 India 1 0.5%