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 215 55.8%
2 United States 63 16.4%
3 Germany 34 8.8%
4 Canada 15 3.9%
5 Hong Kong 14 3.6%
6 Russia 14 3.6%
7 Singapore 6 1.6%
8 United Kingdom 6 1.6%
9 Korea, Republic of 6 1.6%
10 Japan 4 1%
11 France 2 0.5%
12 Australia 1 0.3%
13 Luxembourg 1 0.3%
14 Norway 1 0.3%
15 Israel 1 0.3%
16 Taiwan 1 0.3%
17 Turkey 1 0.3%