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 522 56.9%
2 United States 161 17.5%
3 Netherlands 126 13.7%
4 Germany 50 5.4%
5 Canada 20 2.2%
6 Sweden 12 1.3%
7 France 8 0.9%
8 United Kingdom 2 0.2%
9 Taiwan 2 0.2%
10 Russia 2 0.2%
11 Singapore 2 0.2%
12 Hong Kong 2 0.2%
13 Israel 2 0.2%
14 Japan 2 0.2%
15 Korea, Republic of 1 0.1%
16 India 1 0.1%
17 Cambodia 1 0.1%
18 Czech Republic 1 0.1%
19 Ukraine 1 0.1%