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 158 56.2%
2 United States 61 21.7%
3 Germany 36 12.8%
4 Canada 10 3.6%
5 Hong Kong 4 1.4%
6 Russia 4 1.4%
7 Spain 2 0.7%
8 Bulgaria 2 0.7%
9 Bangladesh 1 0.4%
10 United Kingdom 1 0.4%
11 India 1 0.4%
12 Moldova, Republic of 1 0.4%