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 163 53.6%
2 United States 60 19.7%
3 Germany 37 12.2%
4 Canada 8 2.6%
5 Moldova, Republic of 4 1.3%
6 Netherlands 4 1.3%
7 Hong Kong 4 1.3%
8 India 3 1%
9 France 3 1%
10 Russia 3 1%
11 Taiwan 3 1%
12 Sweden 2 0.7%
13 Morocco 2 0.7%
14 Austria 2 0.7%
15 Cambodia 2 0.7%
16 Italy 2 0.7%
17 Singapore 1 0.3%
18 Ukraine 1 0.3%