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 252 58.1%
2 United States 83 19.1%
3 Germany 41 9.4%
4 Netherlands 25 5.8%
5 Canada 16 3.7%
6 Taiwan 6 1.4%
7 Russia 4 0.9%
8 Hong Kong 2 0.5%
9 Ireland 1 0.2%
10 Japan 1 0.2%
11 Mauritius 1 0.2%
12 Singapore 1 0.2%
13 France 1 0.2%