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 186 60.2%
2 United States 56 18.1%
3 Germany 35 11.3%
4 Netherlands 18 5.8%
5 Hong Kong 4 1.3%
6 Russia 2 0.6%
7 Singapore 2 0.6%
8 Canada 2 0.6%
9 Spain 1 0.3%
10 Turkey 1 0.3%
11 United Kingdom 1 0.3%
12 Japan 1 0.3%