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 377 48.8%
2 United States 164 21.2%
3 Netherlands 137 17.7%
4 Germany 55 7.1%
5 France 11 1.4%
6 Canada 11 1.4%
7 Hong Kong 4 0.5%
8 India 4 0.5%
9 Singapore 3 0.4%
10 Ukraine 2 0.3%
11 Russia 2 0.3%
12 Austria 2 0.3%
13 Ghana 1 0.1%