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 495 50.3%
2 United States 186 18.9%
3 Netherlands 171 17.4%
4 Germany 49 5%
5 France 26 2.6%
6 Canada 18 1.8%
7 Korea, Republic of 14 1.4%
8 Hong Kong 8 0.8%
9 Russia 6 0.6%
10 India 5 0.5%
11 Ukraine 3 0.3%
12 Belarus 2 0.2%
13 Norway 1 0.1%
14 Sweden 1 0.1%