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 186 57.4%
2 United States 53 16.4%
3 Germany 32 9.9%
4 Canada 17 5.2%
5 Hong Kong 5 1.5%
6 India 5 1.5%
7 Japan 5 1.5%
8 Taiwan 4 1.2%
9 Singapore 3 0.9%
10 United Kingdom 2 0.6%
11 France 2 0.6%
12 Norway 2 0.6%
13 Philippines 2 0.6%
14 Italy 2 0.6%
15 Latvia 1 0.3%
16 Luxembourg 1 0.3%
17 Moldova, Republic of 1 0.3%
18 Spain 1 0.3%