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 160 60.6%
2 United States 41 15.5%
3 Germany 24 9.1%
4 Russia 7 2.7%
5 Hong Kong 6 2.3%
6 Canada 5 1.9%
7 Brazil 4 1.5%
8 Singapore 3 1.1%
9 United Kingdom 2 0.8%
10 Norway 2 0.8%
11 Poland 2 0.8%
12 India 2 0.8%
13 Malaysia 2 0.8%
14 Netherlands 1 0.4%
15 France 1 0.4%
16 Taiwan 1 0.4%
17 Turkey 1 0.4%