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 313 41.4%
2 United States 195 25.8%
3 Netherlands 160 21.2%
4 Germany 48 6.3%
5 Canada 15 2%
6 Korea, Republic of 7 0.9%
7 France 5 0.7%
8 Singapore 4 0.5%
9 Russia 3 0.4%
10 Cambodia 2 0.3%
11 United Kingdom 2 0.3%
12 Ukraine 1 0.1%
13 Finland 1 0.1%