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 United States 75 29.6%
2 China 72 28.5%
3 Germany 35 13.8%
4 Netherlands 17 6.7%
5 Russia 11 4.3%
6 Sweden 7 2.8%
7 Hong Kong 6 2.4%
8 India 4 1.6%
9 Japan 4 1.6%
10 Korea, Republic of 4 1.6%
11 Singapore 4 1.6%
12 United Kingdom 3 1.2%
13 Poland 3 1.2%
14 Brazil 3 1.2%
15 Chile 3 1.2%
16 Spain 2 0.8%