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 192 50.3%
2 United States 122 31.9%
3 Germany 37 9.7%
4 Ireland 7 1.8%
5 Korea, Republic of 6 1.6%
6 Singapore 4 1%
7 Russia 3 0.8%
8 France 3 0.8%
9 United Kingdom 2 0.5%
10 Hong Kong 2 0.5%
11 1 0.3%
12 Brazil 1 0.3%
13 Moldova, Republic of 1 0.3%
14 Poland 1 0.3%