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 United States 97 42%
2 China 80 34.6%
3 Russia 22 9.5%
4 Netherlands 21 9.1%
5 Spain 2 0.9%
6 France 2 0.9%
7 Germany 2 0.9%
8 India 1 0.4%
9 Israel 1 0.4%
10 Mauritius 1 0.4%
11 Moldova, Republic of 1 0.4%
12 Poland 1 0.4%