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 174 46.5%
2 United States 75 20.1%
3 Germany 40 10.7%
4 Canada 18 4.8%
5 Spain 16 4.3%
6 Russia 15 4%
7 Italy 8 2.1%
8 Brazil 7 1.9%
9 Finland 3 0.8%
10 Ukraine 3 0.8%
11 United Kingdom 3 0.8%
12 Serbia 2 0.5%
13 Taiwan 2 0.5%
14 Mauritius 2 0.5%
15 Netherlands 2 0.5%
16 Israel 1 0.3%
17 France 1 0.3%
18 Turkey 1 0.3%
19 Singapore 1 0.3%