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 173 56.7%
2 United States 44 14.4%
3 Germany 29 9.5%
4 Taiwan 21 6.9%
5 Russia 6 2%
6 Hong Kong 5 1.6%
7 Singapore 4 1.3%
8 Switzerland 3 1%
9 Japan 3 1%
10 Korea, Republic of 3 1%
11 Czech Republic 3 1%
12 Brazil 3 1%
13 New Zealand 3 1%
14 France 2 0.7%
15 Netherlands 2 0.7%
16 United Kingdom 1 0.3%