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 160 51.3%
2 United States 84 26.9%
3 Germany 26 8.3%
4 Canada 17 5.4%
5 Kazakhstan 6 1.9%
6 Singapore 5 1.6%
7 Malaysia 4 1.3%
8 Hong Kong 4 1.3%
9 Belgium 2 0.6%
10 Russia 2 0.6%
11 Romania 1 0.3%
12 United Kingdom 1 0.3%