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 369 52%
2 Netherlands 151 21.3%
3 United States 120 16.9%
4 Germany 38 5.4%
5 Canada 9 1.3%
6 Hong Kong 5 0.7%
7 Russia 5 0.7%
8 India 3 0.4%
9 3 0.4%
10 France 2 0.3%
11 Korea, Republic of 1 0.1%
12 Singapore 1 0.1%
13 Taiwan 1 0.1%
14 Norway 1 0.1%