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 413 56.1%
2 United States 138 18.8%
3 Germany 73 9.9%
4 Netherlands 71 9.6%
5 Canada 13 1.8%
6 France 7 1%
7 Ukraine 5 0.7%
8 Taiwan 4 0.5%
9 Norway 3 0.4%
10 Hong Kong 3 0.4%
11 Philippines 2 0.3%
12 Russia 1 0.1%
13 India 1 0.1%
14 Korea, Republic of 1 0.1%
15 Finland 1 0.1%