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 166 42.6%
2 United States 140 35.9%
3 Germany 34 8.7%
4 Canada 22 5.6%
5 Hong Kong 4 1%
6 Ireland 3 0.8%
7 Taiwan 3 0.8%
8 Russia 3 0.8%
9 Singapore 2 0.5%
10 Moldova, Republic of 2 0.5%
11 Turkey 2 0.5%
12 Italy 2 0.5%
13 Australia 2 0.5%
14 Finland 2 0.5%
15 Japan 1 0.3%
16 United Kingdom 1 0.3%
17 Netherlands 1 0.3%