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 China 263 72.5%
2 United States 42 11.6%
3 Germany 19 5.2%
4 Netherlands 13 3.6%
5 Hong Kong 8 2.2%
6 Taiwan 6 1.7%
7 Canada 3 0.8%
8 Singapore 2 0.6%
9 Portugal 1 0.3%
10 Russia 1 0.3%
11 India 1 0.3%
12 Korea, Republic of 1 0.3%
13 France 1 0.3%
14 Brazil 1 0.3%
15 Burkina Faso 1 0.3%